Karlyn STI® - Diesel Glow Plug

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1986 GMC P-Series
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Product Details

Karlyn STI

GMC P-Series 6.2L 1986, Diesel Glow Plug by Karlyn STI®. During the cold season, diesel engines do not always start and work as desired. The diesel engine can not reach the needed temperatures without the addition of Glow Plug. Diesel Glow Plugs feature a sophisticated and proven design corresponding to the high OE standards for diesel vehicles of all major automotive manufacturers. Achieving a maximum market coverage with just a few part numbers and manufactured to the ISO 9001 quality standard.

Karlyn STI

Specifications:

Installation Depth: 28.5 mm
Hex Size: 0.375"

Features:

  • OE quality parts from top original equipment and aftermarket manufacturers
  • The finest quality at a great price
  • Provide optimization of the combustion
  • We carry everything needed to complete the job
  • Order from the comfort of your home or office

Karlyn STI® is recognized worldwide as one of the most proven and reliable manufacturers of ignition and suspension parts in the automotive aftermarket. The brand's history traces back to 1971 when German engineer Hans Bierdumpfel founded Karlyn STI, after working on leading positions in several respected companies in the USA. At first the company produced VW ball joints and tie rod ends, and further expanded into manufacturing suspension parts and high-performance spark plug ignition cable sets for a range of vehicle applications. Today, Karlyn STI product lines are admired by automotive fans for their unmatched performance and superior durability.

Part Number:
25033

Warranty Information

A Spark Transfer International (STI) Coil on Plug (COP) Warranty and Diagnosis

Karlyn Industries/STI distributes high-quality COP components. The manufacturer utilizes independent engineers to monitor their coils and test warranties. Most coils that are returned DO NOT have a problem. Rough running engines that set misfire codes can have multiple causes. It is the responsibility of the dealer/installer of Karlyn STI products to verify that the following items of inspection have been performed, in order to comply with warranty replacement.

General misfire codes are most likely due to an intake vacuum leak or fuel delivery problem. Misfire codes identifying a particular cylinder are usually due to a fouled spark plug, dirty or dead fuel injector or loss of compression in the cylinder (burned or bent valve, weak or broken valve spring, or leaky head gasket.)

If the crankshaft position sensor fails, the loss of the basic timing signal will prevent the system from generating a spark and the engine will not start or run. A failed driver circuit within the powertrain control module (PCM) can kill an individual coil and prevent that cylinder from firing. Replacing the coil without addressing the cause will only result in another damaged coil.

Misfire codes can also be triggered from a damaged wire harness due to poor grounds. Inspect the wire harness carefully. You may have to cut back the insulation to verify that there is no corrosion or melting of the wire harness due to poor grounds.

A faulty harness can cause the coil to fail. If you simply install a new COP, it may seem like you have corrected the problem but, merely replacing the coil without repairing the grounding problem may result in future coil failures. In summary, it is important to remember that ignition misfire can also be caused by other factors such as worn or fouled spark plugs, loose or damaged coil connectors or terminals, dirty fuel injectors, low fuel pressure, intake vacuum leaks, loss of compression in a cylinder, even a tank full of "bad" gas contaminated with water. These other possibilities should all be ruled out before a COP unit is replaced.

Note: A fouled spark plug can damage the COP. Karlyn STI recommends that you always replace the spark plugs when you replace the COP units & that all the ignition coils be replaced at the same time. As a form of preventive maintenance, the manufacturer suggests this be done every 60,000 miles. Karlyn STI warrants their coils to be free from factory defects for the period of 12 months or 12,000 miles.

The main goal here is a real solution to your ignition problem which will result in happy customers. Temporary solutions will only result in the return of non-defective parts and in unhappy customers who will continue to have the same problem.

Magnuson-Moss Warranty Act:
Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)) Learn More

Vehicle Fitment

Buick Century
1985 Buick Century
  • 4.3L
1984 Buick Century
  • 4.3L
1983 Buick Century
  • 4.3L
1982 Buick Century
  • 4.3L
1981 Buick Century
  • 5.7L
Buick Electra
1985 Buick Electra
  • 4.3L / 5.7L
1984 Buick Electra
  • 5.7L
1983 Buick Electra
  • 5.7L
1982 Buick Electra
  • 5.7L
1981 Buick Electra
  • 5.7L
1980 Buick Electra
  • 5.7L
Buick Estate
1983 Buick Estate
  • 5.7L
1982 Buick Estate
  • 5.7L
1981 Buick Estate
  • 5.7L
1980 Buick Estate
  • 5.7L
Buick Le Sabre
1985 Buick Le Sabre
  • 5.7L
1984 Buick Le Sabre
  • 5.7L
1983 Buick Le Sabre
  • 5.7L
1982 Buick Le Sabre
  • 5.7L
1981 Buick Le Sabre
  • 5.7L
1980 Buick Le Sabre
  • Base / Limited 5.7L
Buick Regal
1985 Buick Regal
  • 5.7L
1984 Buick Regal
  • 4.3L
1983 Buick Regal
  • Coupe / Sedan / Wagon 4.3L / 5.7L
1982 Buick Regal
  • Base / Limited Coupe 4.3L / 5.7L
1982 Buick Regal
  • Sedan / Wagon 4.3L / 5.7L
Buick Riviera
1985 Buick Riviera
  • 5.7L
1984 Buick Riviera
  • 5.7L
1983 Buick Riviera
  • 5.7L
1982 Buick Riviera
  • 5.7L
1981 Buick Riviera
  • 5.7L
Cadillac Commercial Chassis
1985 Cadillac Commercial Chassis
  • 4.3L
Cadillac Deville
1985 Cadillac Deville
  • 4.3L
1984 Cadillac Deville
  • 5.7L
1983 Cadillac Deville
  • 5.7L
1982 Cadillac Deville
  • 5.7L
1981 Cadillac Deville
  • 5.7L
1980 Cadillac Deville
  • 5.7L
1979 Cadillac Deville
  • 5.7L
Cadillac Eldorado
1985 Cadillac Eldorado
  • 5.7L
1984 Cadillac Eldorado
  • 5.7L
1983 Cadillac Eldorado
  • 5.7L
1982 Cadillac Eldorado
  • 5.7L
1981 Cadillac Eldorado
  • 5.7L
1980 Cadillac Eldorado
  • 5.7L
1979 Cadillac Eldorado
Cadillac Fleetwood
1985 Cadillac Fleetwood
  • 4.3L
Cadillac Series 75
1985 Cadillac Series 75
  • 4.3L
Cadillac Seville
1985 Cadillac Seville
  • 5.7L
1984 Cadillac Seville
  • 5.7L
1983 Cadillac Seville
  • 5.7L
1982 Cadillac Seville
  • 5.7L
1981 Cadillac Seville
  • 5.7L
1980 Cadillac Seville
  • 5.7L
1979 Cadillac Seville
1978 Cadillac Seville
Chevy Blazer
1994 Chevy Blazer
  • 6.5L
1991 Chevy Blazer
  • 6.2L
1990 Chevy Blazer
  • 6.2L
1989 Chevy Blazer
  • 6.2L
1988 Chevy Blazer
  • 6.2L
1987 Chevy Blazer
  • 6.2L
Chevy CK Pickup
2000 Chevy C2500 / C3500 / K2500 / K3500
  • 6.5L
1999 Chevy C2500 / C3500 / K2500 / K3500
  • 6.5L
1998 Chevy C1500 / C2500 / C3500 / K1500 / K2500 / K3500
  • 6.5L
1997 Chevy C1500 / C2500 / C3500 / K1500 / K2500 / K3500
  • 6.5L
1996 Chevy C1500 / C2500 / C3500 / K1500 / K2500 / K3500
  • 6.5L
1995 Chevy C1500 / C2500 / C3500 / K1500 / K2500 / K3500
  • 6.5L
1994 Chevy C1500 / C2500 / C3500 / K1500 / K2500 / K3500
  • 6.5L
1993 Chevy C1500 / C2500 / K1500 / K2500 / K3500
  • 6.2L
1993 Chevy C2500 / K2500 / K3500
  • 6.5L
1993 Chevy C3500
  • Cheyenne / Silverado 6.2L / 6.5L
1992 Chevy C1500 / C2500 / C3500 / K1500 / K2500 / K3500
  • 6.2L
1991 Chevy C1500 / C2500 / C3500 / K1500 / K2500 / K3500 / R3500 / V3500
  • 6.2L
1990 Chevy C1500 / C2500 / C3500 / K1500 / K2500 / K3500 / R3500 / V3500
  • 6.2L
1989 Chevy C1500 / C2500 / C3500 / K1500 / K2500 / K3500 / R2500 / R3500 / V3500
  • 6.2L
1988 Chevy C1500 / C2500 / C3500 / K1500 / K2500 / K3500 / R20 / R30 / V30
  • 6.2L
1987 Chevy R10 / R20 / R30 / V10 / V20 / V30
  • 6.2L
1986 Chevy C10 / C20 / C30 / K10 / K20 / K30
  • 6.2L
1985 Chevy C10 / C20 / C30 / K10 / K20 / K30
  • 6.2L
1984 Chevy C10 / C20 / C30 / K10 / K20 / K30
  • 6.2L
1983 Chevy C10 / C20 / C30 / K10 / K20 / K30
  • 6.2L
1982 Chevy C10 / C20 / C30 / K10 / K20 / K30
  • 6.2L
1978 Chevy C10 / C30
  • 5.7L
Chevy Caprice
1985 Chevy Caprice
  • Diesel
1984 Chevy Caprice
  • 5.7L
1983 Chevy Caprice
  • 5.7L
1982 Chevy Caprice
  • 5.7L
1981 Chevy Caprice
  • 5.7L
1980 Chevy Caprice
  • Diesel
Chevy Celebrity
1985 Chevy Celebrity
  • 4.3L
1984 Chevy Celebrity
  • 4.3L
1983 Chevy Celebrity
  • 4.3L
1982 Chevy Celebrity
  • 4.3L
Chevy El Camino
1984 Chevy El Camino
  • 5.7L
1983 Chevy El Camino
  • 5.7L
Chevy G-Series
1996 Chevy G-Series
  • 6.5L
1995 Chevy G-Series
  • 6.5L
1994 Chevy G-Series
  • 6.5L
1993 Chevy G-Series
  • 6.2L
1992 Chevy G-Series
  • 6.2L
1991 Chevy G-Series
  • 6.2L
1990 Chevy G-Series
  • 6.2L
1989 Chevy G-Series
  • 6.2L
1988 Chevy G-Series
  • 6.2L
1987 Chevy G-Series
  • 6.2L
1986 Chevy G-Series
  • 6.2L
1985 Chevy G-Series
  • 6.2L
1984 Chevy G-Series
  • 6.2L
1983 Chevy G-Series
  • 6.2L
Chevy Impala
1985 Chevy Impala
  • Diesel
1984 Chevy Impala
  • Diesel
1983 Chevy Impala
  • Diesel
1982 Chevy Impala
  • Diesel
1981 Chevy Impala
  • Diesel
1980 Chevy Impala
  • Diesel
Chevy Malibu
1983 Chevy Malibu
  • 4.3L / 5.7L
1982 Chevy Malibu
  • 4.3L / 5.7L
Chevy Monte Carlo
1984 Chevy Monte Carlo
  • 5.7L
1983 Chevy Monte Carlo
  • 4.3L / 5.7L
1982 Chevy Monte Carlo
  • 4.3L / 5.7L
Chevy P-Series
1999 Chevy P30
  • 6.5L
1998 Chevy P30
  • 6.5L
1997 Chevy P30
  • 6.5L
1996 Chevy P30
  • 6.5L
1995 Chevy P-Series
  • 6.5L
1994 Chevy P-Series
  • 6.5L
1989 Chevy P-Series
  • 6.2L
1988 Chevy P-Series
  • 6.2L
1987 Chevy P-Series
  • 6.2L
1986 Chevy P-Series
  • 6.2L
1985 Chevy P-Series
  • 6.2L
1984 Chevy P-Series
  • 6.2L
1983 Chevy P-Series
  • 6.2L
1982 Chevy P-Series
  • 6.2L
Chevy Suburban
1991 Chevy R1500 Suburban / R2500 Suburban / V1500 Suburban / V2500 Suburban
  • 6.2L
1990 Chevy R1500 Suburban / R2500 Suburban / V1500 Suburban / V2500 Suburban
  • 6.2L
1989 Chevy R1500 Suburban / R2500 Suburban / V1500 Suburban / V2500 Suburban
  • 6.2L
1988 Chevy R10 Suburban / R20 Suburban / V10 Suburban / V20 Suburban
  • 6.2L
1987 Chevy R10 Suburban / R20 Suburban / V10 Suburban / V20 Suburban
  • 6.2L
1986 Chevy Suburban
  • 6.2L
1985 Chevy Suburban
  • 6.2L
1984 Chevy Suburban
  • 6.2L
1983 Chevy Suburban
  • 6.2L
1982 Chevy Suburban
  • 6.2L
1980 Chevy C10 Suburban
  • 5.7L
1979 Chevy C10 Suburban
  • 5.7L
1978 Chevy C10 Suburban
  • 5.7L
Chevy Tahoe
1999 Chevy Tahoe
  • 6.5L
1998 Chevy Tahoe
  • 6.5L
1997 Chevy Tahoe
  • 6.5L
1996 Chevy Tahoe
  • 6.5L
1995 Chevy Tahoe
  • 6.5L
GMC CK Pickup
2000 GMC C2500 / C3500 / K2500 / K3500
  • 6.5L
1999 GMC C2500 / C3500 / K2500 / K3500
  • 6.5L
1998 GMC C2500 / C3500 / K1500 / K2500 / K3500
  • 6.5L
1997 GMC C1500 / C2500 / C3500 / K2500 / K3500
  • 6.5L
1997 GMC K1500
  • Sierra SL / Sierra SLE / Sierra SLT 6.5L
1996 GMC C1500 / C2500 / C3500 / K1500 / K2500 / K3500
  • 6.5L
1995 GMC C1500 / C2500 / C3500 / K1500 / K2500 / K3500
  • 6.5L
1994 GMC C1500 / C2500 / C3500 / K1500 / K2500 / K3500
  • 6.5L
1993 GMC CK Pickup
  • 6.2L
1993 GMC C2500 / C3500 / K2500 / K3500
  • 6.5L
1992 GMC CK Pickup
  • 6.2L
1992 GMC C2500 / C3500 / K2500 / K3500
  • 6.5L
1991 GMC CK Pickup
  • 6.2L
1990 GMC CK Pickup
  • 6.2L
1989 GMC CK Pickup
  • 6.2L
1988 GMC CK Pickup
  • 6.2L
1987 GMC CK Pickup
  • 6.2L
1986 GMC CK Pickup
  • 6.2L
1985 GMC CK Pickup
  • 6.2L
1984 GMC CK Pickup
  • 6.2L
1983 GMC CK Pickup
  • 6.2L
1982 GMC CK Pickup
  • 6.2L
1981 GMC C1500
  • 5.7L
1980 GMC C1500
  • Base / High Sierra / Sierra Classic / Sierra Grande / Street Coupe 5.7L
1979 GMC C1500
  • Base / High Sierra / Sierra Classic / Sierra Grande / Street Coupe 5.7L
1978 GMC C15
  • Base / High Sierra / Sierra Classic / Sierra Grande / Street Coupe 5.7L
GMC Caballero
1984 GMC Caballero
  • 5.7L
1983 GMC Caballero
  • 5.7L
GMC G-Series
1996 GMC G-Series
  • 6.5L
1995 GMC G-Series
  • 6.5L
1994 GMC G2500 / G3500
  • 6.5L
1993 GMC G-Series
  • 6.2L
1992 GMC G-Series
  • 6.2L
1991 GMC G-Series
  • 6.2L
1990 GMC G-Series
  • 6.2L
1989 GMC G-Series
  • 6.2L
1988 GMC G-Series
  • 6.2L
1987 GMC G-Series
  • 6.2L
1986 GMC G-Series
  • 6.2L
1985 GMC G2500
  • 6.2L
1985 GMC G3500
  • Magnavan / Rally / Rally Camper Special / Rally STX / Vandura / Vandura Special 6.2L
1984 GMC G-Series
  • 6.2L
1983 GMC G-Series
  • 6.2L
GMC Jimmy
1991 GMC Jimmy
  • 6.2L
1990 GMC Jimmy
  • 6.2L
1989 GMC Jimmy
  • 6.2L
1988 GMC Jimmy
  • 6.2L
1987 GMC Jimmy
  • 6.2L
1986 GMC Jimmy
  • 6.2L
1985 GMC Jimmy
  • 6.2L
1984 GMC Jimmy
  • 6.2L
1983 GMC Jimmy
  • 6.2L
1982 GMC Jimmy
  • 6.2L
GMC P-Series
1999 GMC P-Series
  • 6.5L
1998 GMC P-Series
  • 6.5L
1997 GMC P-Series
  • 6.5L
1996 GMC P-Series
  • 6.5L
1995 GMC P-Series
  • 6.5L
1994 GMC P-Series
  • 6.5L
1993 GMC P-Series
  • 6.2L
1992 GMC P-Series
  • 6.2L
1991 GMC P-Series
  • 6.2L
1990 GMC P-Series
  • 6.2L
1989 GMC P-Series
  • 6.2L
1988 GMC P-Series
  • 6.2L
1987 GMC P-Series
  • 6.2L
1986 GMC P-Series
  • 6.2L
1985 GMC P-Series
  • 6.2L
1984 GMC P-Series
  • 6.2L
1983 GMC P-Series
  • 6.2L
1982 GMC P-Series
  • 6.2L
GMC Suburban
1999 GMC Suburban
  • 6.5L
1998 GMC Suburban
  • 6.5L
1997 GMC Suburban
  • 6.5L
1996 GMC Suburban
  • 6.5L
1995 GMC Suburban
  • 6.5L
1994 GMC Suburban
  • 6.5L
1991 GMC Suburban
  • 6.2L
1990 GMC Suburban
  • 6.2L
1989 GMC Suburban
  • 6.2L
1988 GMC Suburban
  • 6.2L
1987 GMC Suburban
  • 6.2L
1986 GMC Suburban
  • 6.2L
1985 GMC Suburban
  • 6.2L
1984 GMC Suburban
  • 6.2L
1983 GMC Suburban
  • 6.2L
1982 GMC Suburban
  • 6.2L
1981 GMC C1500 Suburban
  • 5.7L
1980 GMC C1500 Suburban / C2500 Suburban
  • 5.7L
1979 GMC C1500 Suburban
  • 5.7L
1978 GMC C15 Suburban
  • 5.7L
Hummer H1
2001 Hummer H1
2000 Hummer H1
1999 Hummer H1
1998 Hummer H1
1997 Hummer H1
1996 Hummer H1
  • 6.5L
1995 Hummer H1
  • 6.5L
1994 Hummer H1
1993 Hummer H1
1992 Hummer H1
Oldsmobile Calais
1984 Oldsmobile Calais
  • 4.3L / 5.7L
1983 Oldsmobile Calais
  • 4.3L / 5.7L
1982 Oldsmobile Calais
  • Diesel
1981 Oldsmobile Calais
  • 5.7L
1980 Oldsmobile Calais
  • 5.7L
1979 Oldsmobile Calais
  • Diesel
Oldsmobile Ciera
1985 Oldsmobile Ciera
  • 4.3L
1984 Oldsmobile Ciera
  • Brougham / Cruiser LS / LS 4.3L
1983 Oldsmobile Ciera
  • 4.3L
1982 Oldsmobile Ciera
  • 4.3L
Oldsmobile Custom Cruiser
1985 Oldsmobile Custom Cruiser
  • 5.7L
1984 Oldsmobile Custom Cruiser
  • 5.7L
1983 Oldsmobile Custom Cruiser
  • 5.7L
1982 Oldsmobile Custom Cruiser
  • 5.7L
1981 Oldsmobile Custom Cruiser
  • 5.7L
1980 Oldsmobile Custom Cruiser
  • 5.7L
1979 Oldsmobile Custom Cruiser
  • 5.7L
1978 Oldsmobile Custom Cruiser
  • 5.7L
Oldsmobile Cutlass
1985 Oldsmobile Cutlass Supreme
  • 5.7L
1984 Oldsmobile Cutlass
  • 4.3L / 5.7L
1983 Oldsmobile Cutlass Supreme
  • 4.3L / 5.7L
1982 Oldsmobile Cutlass Supreme
  • Diesel
1981 Oldsmobile Cutlass Supreme
  • 5.7L
1981 Oldsmobile Cutlass
  • Brougham / LS 5.7L
1980 Oldsmobile Cutlass / Cutlass Supreme
  • 5.7L
1979 Oldsmobile Cutlass
  • Diesel
1979 Oldsmobile Cutlass Supreme
  • 5.7L
1979 Oldsmobile Cutlass Supreme
  • 4.3L Diesel
Oldsmobile Eighty-Eight
1985 Oldsmobile Eighty-Eight
  • 5.7L
1984 Oldsmobile Eighty-Eight
  • 5.7L
1983 Oldsmobile Eighty-Eight
  • 5.7L
1982 Oldsmobile Eighty-Eight
  • 5.7L
1981 Oldsmobile Eighty-Eight
  • 5.7L
1980 Oldsmobile Eighty-Eight
  • 5.7L
1979 Oldsmobile Eighty-Eight
  • 5.7L
1978 Oldsmobile Eighty-Eight
  • 5.7L
Oldsmobile Ninety-Eight
1985 Oldsmobile Ninety-Eight
  • 4.3L
1984 Oldsmobile Ninety-Eight
  • 5.7L
1983 Oldsmobile Ninety-Eight
  • 5.7L
1982 Oldsmobile Ninety-Eight
  • 5.7L
1981 Oldsmobile Ninety-Eight
  • 5.7L
1980 Oldsmobile Ninety-Eight
  • 5.7L
1979 Oldsmobile Ninety-Eight
  • 5.7L
Oldsmobile Toronado
1985 Oldsmobile Toronado
  • 5.7L
1984 Oldsmobile Toronado
  • 5.7L
1983 Oldsmobile Toronado
  • 5.7L
1982 Oldsmobile Toronado
  • 5.7L
1981 Oldsmobile Toronado
  • 5.7L
1980 Oldsmobile Toronado
  • 5.7L
1979 Oldsmobile Toronado
Pontiac Bonneville
1984 Pontiac Bonneville
  • 5.7L
1983 Pontiac Bonneville
  • 5.7L
1982 Pontiac Bonneville
  • 5.7L
1981 Pontiac Bonneville
  • 5.7L
1980 Pontiac Bonneville
  • 5.7L
Pontiac Catalina
1981 Pontiac Catalina
  • 5.7L
1980 Pontiac Catalina
  • 5.7L
Pontiac Grand Prix
1984 Pontiac Grand Prix
  • 5.7L
1983 Pontiac Grand Prix
  • 5.7L
1982 Pontiac Grand Prix
  • 5.7L
1981 Pontiac Grand Prix
  • 5.7L
Pontiac Laurentian
1981 Pontiac Laurentian
  • 5.7L
1980 Pontiac Laurentian
  • 5.7L
Pontiac LeMans
1983 Pontiac LeMans
  • 5.7L
1982 Pontiac LeMans
  • 5.7L
Pontiac 6000
1985 Pontiac 6000
  • 4.3L
1984 Pontiac 6000
  • 4.3L
1983 Pontiac 6000
  • 4.3L
1982 Pontiac 6000
  • 4.3L
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