How to replace the Spark Plug Wires on GMC C2500?

Begin the wire harness replacement process by twisting each Spark Plug 1/2 turn then pulling the boot away from the wire. First disconnect the Spark Plug wires from the Ignition Coil by twisting each Spark Plug boot 1/2 turn and extracting the wires with boot-only contact. The Spark Plug wire length in the melco(R) (square design) measures 145 mm (5.70 in) whereas the delphi(R) (round design) uses a wire that measures 110 mm (4.30 in). There are two different manufacturers for the ignition coils: the ignition system comprises two coil types namely melco(R) (square design) and delphi(R) (round design) which need particular Spark Plug wires in addition to distinct mounting brackets - the melco(R) (square design) coil mounting bracket and the delphi(R) (round design) coil mounting bracket. Begin installation by attaching Spark Plug wires to the Ignition Coil before wiring them to each Spark Plug. Check wire installation through sideward pressure tests on boots to verify proper fitment before reattaching loose boots.

OEM GMC C2500 Spark Plug Wires

Spark Plug Ignition Wires

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11 Spark Plug Wires found

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GMC C2500 Cable Set
Part Number: 19171857
$114.51 MSRP: $247.86
You Save: $133.35 (54%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Wire Kit, Spark Plug; Spark Plug Wire; Wire Kit, Spark Or Glow Plug Ignition
- Replaces: 12192004
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2000 GMC C2500 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 7.4 L GAS
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GMC C2500 Cable Set
Part Number: 19154575
$51.92 MSRP: $112.38
You Save: $60.46 (54%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Wire Kit, Spark Plug; Spark Plug Wire; Wire Kit, Spark Or Glow Plug Ignition
- Replaces: 12073934
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-1993 GMC C2500 | Sierra, Sierra SLE, Sierra SLX | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS
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GMC C2500 Cable Set
Part Number: 12043816
$30.16 MSRP: $64.04
You Save: $33.88 (53%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Wire Kit, Spark Plug; Spark Plug Wire; Ignition Set; Wire Kit, Spark Or Glow Plug Ignition
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1985-1986 GMC C2500 | Base, High Sierra, Sierra Classic | 6 Cyl 4.8 L GAS
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GMC C2500 Cable Set
Part Number: 19154582
$49.61 MSRP: $108.32
You Save: $58.71 (55%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Wire Kit, Spark Plug; Spark Plug Wire; Wire Kit, Spark Or Glow Plug Ignition
- Replaces: 12074076
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1991-1995 GMC C2500 | Sierra, Sierra SL, Sierra SLE, Sierra SLX | 6 Cyl 4.3 L GAS
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GMC C2500 Cable Set
Part Number: 19171844
$47.53 MSRP: $148.31
You Save: $100.78 (68%)
ADD TO CART
Product Specifications
- Other Name: Wire Kit, Spark Plug; Spark Plug Wire; Wire Kit, Spark Or Glow Plug Ignition
- Replaces: 12074045
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1991-1993 GMC C2500 | Sierra, Sierra SLE, Sierra SLX | 8 Cyl 7.4 L GAS
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GMC C2500 Cable Set
Part Number: 19417605
$119.73 MSRP: $261.42
You Save: $141.69 (55%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Wire Kit, Spark Plug; Spark Plug Wire; Wire Kit, Spark Or Glow Plug Ignition
- Replaces: 12192364, 12192001, 19351566
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2000 GMC C2500 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS
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GMC C2500 Cable Set
Part Number: 19171846
$54.22 MSRP: $101.82
You Save: $47.60 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Wire Kit, Spark Plug; Spark Plug Wire; Wire Kit, Spark Or Glow Plug Ignition
- Replaces: 12096418
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1995 GMC C2500 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 7.4 L GAS
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GMC C2500 Cable Set
Part Number: 19154584
$62.64 MSRP: $135.58
You Save: $72.94 (54%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Wire Kit, Spark Plug; Spark Plug Wire; Wire Kit, Spark Or Glow Plug Ignition
- Replaces: 12096431
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1995 GMC C2500 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS
View related parts
GMC C2500 Cable Set
Part Number: 19154576
$49.07 MSRP: $88.83
You Save: $39.76 (45%)
ADD TO CART
Product Specifications
- Other Name: Wire Kit, Spark Plug; Spark Plug Wire; Ignition Set; Wire Kit, Spark Or Glow Plug Ignition
- Replaces: 12073935
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-1990 GMC C2500 | Sierra, Sierra SLE, Sierra SLX | 6 Cyl 4.3 L GAS
View related parts
GMC C2500 Cable Set
Part Number: 12043731
Product Specifications
- Other Name: Wire Set; Spark Plug Wire
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1986 GMC C2500 | Base, High Sierra, Sierra Classic | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS
View related parts
GMC C2500 Cable Set
Part Number: 12043714
Product Specifications
- Other Name: Wire Set-Spark Plug; Spark Plug Wire; Wire Kit, Spark Or Glow Plug Ignition
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984 GMC C2500 | Base, High Sierra, Sierra Classic | 6 Cyl 4.1 L GAS, 6 Cyl 4.8 L GAS

GMC C2500 Spark Plug Wires

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GMC C2500 Spark Plug Wires Parts Questions & Experts Answers

Cable Set
19171857
Q: How to replace the Spark Plug Wires on GMC C2500?
A: Begin the wire harness replacement process by twisting each Spark Plug 1/2 turn then pulling the boot away from the wire. First disconnect the Spark Plug wires from the Ignition Coil by twisting each Spark Plug boot 1/2 turn and extracting the wires with boot-only contact. The Spark Plug wire length in the melco(R) (square design) measures 145 mm (5.70 in) whereas the delphi(R) (round design) uses a wire that measures 110 mm (4.30 in). There are two different manufacturers for the ignition coils: the ignition system comprises two coil types namely melco(R) (square design) and delphi(R) (round design) which need particular Spark Plug wires in addition to distinct mounting brackets - the melco(R) (square design) coil mounting bracket and the delphi(R) (round design) coil mounting bracket. Begin installation by attaching Spark Plug wires to the Ignition Coil before wiring them to each Spark Plug. Check wire installation through sideward pressure tests on boots to verify proper fitment before reattaching loose boots.

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