shop injectors shop injectors
CHEVY/GMC     Diesel Fuel Injectors

DE621 Chevy and GMC Remanufactured Fuel Injector
Actual appearance may vary


Chevrolet and GMC Diesel Fuel Injectors remanufactured by Bostech have been stripped and cleaned. All O-Rings, Pintels, etc. are replaced. The fuel flow on all of our injectors is rigorously tested prior to our factory certification.

Each Bostech Fuel Injector includes both the Injector and the Seal Kit. Click Here for Installation Instructions.

Bostech factory certifications meet or exceed industry standards for fuel flow, and come with a 1-Year, Unlimited Mile Warranty.

Questions? Call 1-877-558-0996

List Price:
Our Price:
You Save:
Core Fee:



1987 Chevrolet Blazer 6.2L
1988 Chevrolet Blazer 6.2L
1989 Chevrolet Blazer 6.2L
1990 Chevrolet Blazer 6.2L
1991 Chevrolet Blazer 6.2L

1988 Chevrolet C1500 6.2L
1989 Chevrolet C1500 6.2L
1990 Chevrolet C1500 6.2L

1988 Chevrolet C2500 6.2L
1989 Chevrolet C2500 6.2L
1990 Chevrolet C2500 6.2L

1988 Chevrolet C3500 6.2L
1989 Chevrolet C3500 6.2L
1990 Chevrolet C3500 6.2L

1987 Chevrolet G20 6.2L
1988 Chevrolet G20 6.2L
1989 Chevrolet G20 6.2L
1990 Chevrolet G20 6.2L
1991 Chevrolet G20 6.2L

1987 Chevrolet G20 Sportvan 6.2L
1988 Chevrolet G20 Sportvan 6.2L
1989 Chevrolet G20 Sportvan 6.2L
1990 Chevrolet G20 Sportvan 6.2L
1991 Chevrolet G20 Sportvan 6.2L

1987 Chevrolet G30 6.2L
1988 Chevrolet G30 6.2L
1989 Chevrolet G30 6.2L
1990 Chevrolet G30 6.2L
1991 Chevrolet G30 6.2L

1987 Chevrolet G30 Sportvan 6.2L
1988 Chevrolet G30 Sportvan 6.2L
1989 Chevrolet G30 Sportvan 6.2L
1990 Chevrolet G30 Sportvan 6.2L
1991 Chevrolet G30 Sportvan 6.2L

1988 Chevrolet K1500 6.2L
1989 Chevrolet K1500 6.2L
1990 Chevrolet K1500 6.2L

1988 Chevrolet K2500 6.2L
1989 Chevrolet K2500 6.2L
1990 Chevrolet K2500 6.2L

1988 Chevrolet K3500 6.2L
1989 Chevrolet K3500 6.2L
1990 Chevrolet K3500 6.2L

1987 Chevrolet P20 6.2L
1988 Chevrolet P20 6.2L
1989 Chevrolet P20 6.2L

1987 Chevrolet P30 6.2L
1988 Chevrolet P30 6.2L
1989 Chevrolet P30 6.2L
1990 Chevrolet P30 6.2L

1987 Chevrolet R10 6.2L

1987 Chevrolet R10 Suburban 6.2L
1988 Chevrolet R10 Suburban 6.2L

1989 Chevrolet R1500 Suburban 6.2L
1990 Chevrolet R1500 Suburban 6.2L
1991 Chevrolet R1500 Suburban 6.2L

1987 Chevrolet R20 6.2L
1988 Chevrolet R20 6.2L

1987 Chevrolet R20 Suburban 6.2L
1988 Chevrolet R20 Suburban 6.2L

1989 Chevrolet R2500 6.2L

1989 Chevrolet R2500 Suburban 6.2L
1990 Chevrolet R2500 Suburban 6.2L
1991 Chevrolet R2500 Suburban 6.2L

1987 Chevrolet R30 6.2L
1987 Chevrolet R30 6.2L

1989 Chevrolet R3500 6.2L
1990 Chevrolet R3500 6.2L
1991 Chevrolet R3500 6.2L

1987 Chevrolet V10 6.2L

1987 Chevrolet V10 Suburban 6.2L
1988 Chevrolet V10 Suburban 6.2L

1989 Chevrolet V1500 Suburban 6.2L
1990 Chevrolet V1500 Suburban 6.2L
1991 Chevrolet V1500 Suburban 6.2L

1987 Chevrolet V20 6.2L

1987 Chevrolet V20 Suburban 6.2L
1988 Chevrolet V20 Suburban 6.2L

1989 Chevrolet V2500 Suburban 6.2L
1990 Chevrolet V2500 Suburban 6.2L
1991 Chevrolet V2500 Suburban 6.2L

1987 Chevrolet V30 6.2L
1988 Chevrolet V30 6.2L

1989 Chevrolet V3500 6.2L
1990 Chevrolet V3500 6.2L
1991 Chevrolet V3500 6.2L

1988 GMC C1500 6.2L

1989 GMC C1500 Sierra 6.2L
1990 GMC C1500 Sierra 6.2L

1989 GMC C1500 Sierra XC 6.2L
1990 GMC C1500 Sierra XC 6.2L

1988 GMC C2500 6.2L

1989 GMC C2500 Sierra 6.2L
1990 GMC C2500 Sierra 6.2L

1989 GMC C2500 Sierra XC 6.2L
1990 GMC C2500 Sierra XC 6.2L

1988 GMC C3500 6.2L

1989 GMC C3500 Sierra 6.2L
1990 GMC C3500 Sierra 6.2L

1989 GMC C3500 Sierra XC 6.2L
1990 GMC C3500 Sierra XC 6.2L

1987 GMC G2500 Rally 6.2L
1988 GMC G2500 Rally 6.2L
1989 GMC G2500 Rally 6.2L
1990 GMC G2500 Rally 6.2L
1991 GMC G2500 Rally 6.2L

1987 GMC G2500 Vandura 6.2L
1988 GMC G2500 Vandura 6.2L
1989 GMC G2500 Vandura 6.2L
1990 GMC G2500 Vandura 6.2L
1991 GMC G2500 Vandura 6.2L

1987 GMC G3500 6.2L
1988 GMC G3500 6.2L
1989 GMC G3500 6.2L
1990 GMC G3500 6.2L
1991 GMC G3500 6.2L

1987 GMC G3500 Rally 6.2L
1988 GMC G3500 Rally 6.2L
1989 GMC G3500 Rally 6.2L
1990 GMC G3500 Rally 6.2L
1991 GMC G3500 Rally 6.2L

1987 GMC G3500 Vandura 6.2L
1988 GMC G3500 Vandura 6.2L
1989 GMC G3500 Vandura 6.2L
1990 GMC G3500 Vandura 6.2L
1991 GMC G3500 Vandura 6.2L

1987 GMC Jimmy 6.2L
1988 GMC Jimmy 6.2L
1989 GMC Jimmy 6.2L
1990 GMC Jimmy 6.2L
1991 GMC Jimmy 6.2L

1988 GMC K1500 6.2L

1989 GMC K1500 Sierra 6.2L
1990 GMC K1500 Sierra 6.2L

1989 GMC K1500 Sierra XC 6.2L
1990 GMC K1500 Sierra XC 6.2L

1988 GMC K2500 6.2L

1989 GMC K2500 Sierra 6.2L
1990 GMC K2500 Sierra 6.2L

1989 GMC K2500 Sierra XC 6.2L
1990 GMC K2500 Sierra XC 6.2L

1988 GMC K3500 6.2L

1989 GMC K3500 Sierra 6.2L
1990 GMC K3500 Sierra 6.2L

1989 GMC K3500 Sierra XC 6.2L
1990 GMC K3500 Sierra XC 6.2L

1988 GMC P2500 6.2L

1989 GMC P3500 6.2L
1990 GMC P3500 6.2L

1987 GMC R1500 6.2L

1987 GMC R1500 Suburban 6.2L
1988 GMC R1500 Suburban 6.2L
1989 GMC R1500 Suburban 6.2L
1990 GMC R1500 Suburban 6.2L
1991 GMC R1500 Suburban 6.2L

1987 GMC R2500 6.2L
1988 GMC R2500 6.2L
1989 GMC R2500 6.2L

1987 GMC R2500 Suburban 6.2L
1988 GMC R2500 Suburban 6.2L
1989 GMC R2500 Suburban 6.2L
1990 GMC R2500 Suburban 6.2L
1991 GMC R2500 Suburban 6.2L

1987 GMC R3500 6.2L
1988 GMC R3500 6.2L
1989 GMC R3500 6.2L
1990 GMC R3500 6.2L
1991 GMC R3500 6.2L

1987 GMC V1500 6.2L

1987 GMC V1500 Suburban 6.2L
1988 GMC V1500 Suburban 6.2L
1989 GMC V1500 Suburban 6.2L
1990 GMC V1500 Suburban 6.2L
1991 GMC V1500 Suburban 6.2L

1987 GMC V2500 6.2L

1987 GMC V2500 Suburban 6.2L
1988 GMC V2500 Suburban 6.2L
1989 GMC V2500 Suburban 6.2L
1990 GMC V2500 Suburban 6.2L
1991 GMC V2500 Suburban 6.2L

1987 GMC V3500 6.2L
1988 GMC V3500 6.2L
1989 GMC V3500 6.2L
1990 GMC V3500 6.2L
1991 GMC V3500 6.2L
To install this Injector you will need
TL1-TL2 Injector Installation Brushes


Installing remanufactured fuel injectors is a fairly simple process and can be done yourself with a few basic tools and a little time. If you are not familiar with your fuel injector system, grab your vehicle's repair manual to assist along the way.
  1. Remove the air box, unless you have already upgraded your air intake system, then this step is not necessary. If you will be installing a supercharger with it, remove the air inlet temperature sensor as well. They tend to stick a little, so be patient with it.
  2. Take out the bolts holding the strut tower brace on and remove it. These bolts are generally 10 mm in size and there will be eight or so of them. A standard 10 mm torque wrench should do the trick. If they stick, use a little engine cleaner to help loosen them.
  3. Continue removing components until you reach the fuel rail. These components will include: idle air control valve, EGR, throttle position sensor, throttle cable, EGR valve, intake manifold, all hoses, electrical connectors, fuel lines and, alas, the fuel rail which houses the fuel injectors.
  4. Wiggle the fuel injectors off much like when replacing spark plugs and wires. Each one will spray some gas, so no smoking during this process. Place the new injector in place of the old on and lubricate the O-ring with some 20W engine oil. Reinstall everything and you are done.

If you're getting raw fuel to exhaust pipe:

  1. Check for open intake valves.
  2. (Bad pressure regulator)  It builds too much pressure in the fuel rails and consumes a large amount of excess gasoline.  Also, ½ gallon of fuel ends up in the oil pan.  In this case, the oil should be changed immediately.

To find the fuel leak:

  1. Remove upper intake manifold
  2. Turn the key on (but do not attempt to start the vehicle)
  3. After the fuel pump comes on, you should be able to visually identify any leaks.



shop injectors