NGK RC-GMX091 51033 Spark Plug Wire Set Chevy Silverado Tahoe GMC Sierra V8

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Product Specification:

SKU:NGK51033

MPN: 51033

UPC: 10087295510336

Weight: 1.2 lb

Inventory: 10

Type: Spark Plug Wire Sets

Vehicle Fitment

2002-2006 Cadillac Escalade (Base, 4.8L / 5.3L / 6.0L V8)
2003-2006 Cadillac Escalade ESV (Base, 5.3L / 6.0L V8)
2002-2006 Cadillac Escalade EXT (Base, 5.3L / 6.0L V8)
2002-2006 Chevrolet Avalanche 1500 (Base, LS, LT, Z71, 4.8L / 5.3L V8)
1999-2007 Chevrolet Silverado 1500 (WT, LS, LT, LTZ, 4.8L / 5.3L V8)
2001-2007 Chevrolet Silverado 1500 HD (WT, LS, LT, 6.0L V8)
1999-2004 Chevrolet Silverado 2500 (WT, LS, LT, 4.8L / 5.3L / 6.0L V8)
2001-2007 Chevrolet Silverado 2500 HD (WT, LS, LT, 6.0L V8)
2001-2007 Chevrolet Silverado 3500 (WT, LS, LT, 6.0L V8)
2000-2006 Chevrolet Suburban 1500 (LS, LT, 4.8L / 5.3L V8)
2000-2006 Chevrolet Suburban 2500 (LS, LT, 6.0L V8)
2000-2006 Chevrolet Tahoe (LS, LT, Z71, 4.8L / 5.3L V8)
2003-2007 Hummer H2 (Base, Adventure, Lux, 6.0L V8)
1999-2007 GMC Sierra 1500 (SL, SLE, SLT, Denali, 4.8L / 5.3L V8)
2001-2007 GMC Sierra 1500 HD (SLE, SLT, 6.0L V8)
1999-2004 GMC Sierra 2500 (SL, SLE, SLT, 4.8L / 5.3L / 6.0L V8)
2001-2007 GMC Sierra 2500 HD (SL, SLE, SLT, 6.0L V8)
2001-2007 GMC Sierra 3500 (SL, SLE, SLT, 6.0L V8)
2000-2006 GMC Yukon (SL, SLE, SLT, Denali, 4.8L / 5.3L V8)
2000-2006 GMC Yukon XL 1500 (SLE, SLT, 4.8L / 5.3L V8)
2000-2006 GMC Yukon XL 2500 (SLE, SLT, 6.0L V8)

Fitment Notes

Fits GMT800-platform V8 applications only; requires coil pack # 12558693 with 10.5" coil lead - verify coil number before ordering.
2007 Silverado and Sierra Classic entries refer to the old body style (GMT800) carryover models only; the 2007 new body style (GMT900) uses a different wire set.
Does not fit 6.6L Duramax diesel, 8.1L Vortec V8, or 4-cylinder applications in the same vehicle families.
Includes 8 wires; coil lead is not included (N/R) - the existing coil lead should be reused or sourced separately.
Wire set is application-specific, not universal fit - wires are pre-cut to OEM lengths for each cylinder position.

Features

High-temperature silicone outer jacket withstands underhood temperatures up to 250°C (482°F) without cracking or degrading.
Variable pitch ferro-magnetic core winding scrambles and suppresses EMI/RFI electrical interference across a wide frequency range.
Ultra-low resistance ferro-mag core delivers approximately half the resistance of conventional carbon core wires (8k ohm/m vs. 16k ohm/m) for a stronger, more consistent spark.
High-density fiberglass braiding over EPDM/silicone inner insulation provides superior dielectric strength and tensile resistance against pull-out damage.
Positive-locking corrosion-resistant stainless steel terminal ends with up to 3 serrated crimps for maximum vibration and separation resistance.
Silicone-sealed spark plug boots provide a watertight seal at each plug connection, preventing moisture intrusion and corrosion.
Custom application-specific terminal boots deliver exact OEM fit - not generic universal boots.
Wires are numbered for easy cylinder identification; backed by NGK's Lifetime Warranty.

Specifications

NGK Part Number: RC-GMX091 (also listed as GMX091)
NGK Stock Number: 51033
Product Type: Spark Plug Wire Set
Core Material: Ferro-Magnetic (Ferro Mag)
Jacket Material: Silicone
Jacket Color: Blue
Wire Outer Diameter: 7mm
Wire Count: 8 Wires (Coil Lead Not Included)
Noise Suppression: Yes (EMI/RFI)
Fit Type: Vehicle-Specific (Not Universal)
Platform: GM GMT800
Warranty: Lifetime

Included Components

1x Complete 8-Wire Spark Plug Wire Set (NGK RC-GMX091) - pre-numbered for cylinder identification; coil lead not included

Product Description

The NGK RC-GMX091 (Stock No. 51033) is a direct-fit spark plug wire set engineered for GM's GMT800-platform V8 trucks and SUVs, covering the 4.8L, 5.3L, and 6.0L Vortec V8 engines used across the Silverado, Sierra, Tahoe, Yukon, Suburban, Avalanche, Cadillac Escalade, and Hummer H2 from 1999 through 2007. This set is compatible with vehicles equipped with coil pack # 12558693 and requires the 10.5" coil lead - confirm this coil number before ordering. All 8 wires are pre-cut to OEM lengths and terminated with application-specific boots for a direct plug-in installation with no trimming or adapting required.

The ferro-magnetic variable pitch core provides ultra-low resistance and effective EMI/RFI suppression, protecting the vehicle's electronics and sensors from spark-generated interference. The high-temperature silicone jacket and fiberglass-reinforced inner insulation resist the extreme underhood heat of these large-displacement V8 applications, while positive-locking stainless steel terminals and silicone-sealed boots ensure a secure, long-lasting connection at every cylinder. Backed by NGK's Lifetime Warranty, this wire set delivers a reliable, long-term improvement over worn OEM wires or lower-quality carbon-core replacements.