NGK mag-core spark plug wire set for the Corvette / Trailblazer SS / GTO / Silverado / Tahoe. Stainless winding over a premium ferrite magnetic core keeps resistance ultra-low for a stronger spark while suppressing EMI/RFI interference, and a high-temp silicone jacket over EPDM/silicone insulation gives high dielectric strength. OE-or-better boots are silicone-sealed to the cable for a watertight seal, with stainless terminals, serrated crimps and a locking C-clip for a secure fit.
Specifications
| Part Number | 51436 |
| Type | Mag-core, ultra-low resistance |
| Engine Family | GM LS V8 |
| Warranty | Limited lifetime |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2008 | Buick | LaCrosse | Super |
| 2005-2007 | Buick | Rainier | CXL, CXL Plus |
| 2006-2007 | Cadillac | CTS | V |
| 2007-2008 | Cadillac | Escalade / ESV / EXT | Base, Platinum |
| 2007-2008 | Chevrolet | Avalanche | LS, LT, LTZ |
| 2005-2008 | Chevrolet | Corvette | Base, Z06, 427 Ltd Z06 |
| 2008 | Chevrolet | Express 1500 / 2500 / 3500 | Base, LS, LT |
| 2006-2008 | Chevrolet | Impala SS / Monte Carlo SS | SS |
| 2007-2008 | Chevrolet | Silverado 1500 / 2500 HD / 3500 HD | WT, LS, LT, LTZ |
| 2007-2008 | Chevrolet | Suburban 1500 / 2500 / Tahoe | LS, LT, LTZ, Hybrid |
| 2005-2008 | Chevrolet | Trailblazer / Trailblazer EXT | LS, LT, SS, Base |
| 2005-2006 | Chevrolet | SSR | Base |
| 2005-2008 | GMC | Envoy / Envoy XL / XUV Denali | Denali, SLE, SLT |
| 2007-2008 | GMC | Sierra 1500 / 2500 HD / 3500 HD | SL, SLE, SLT, Denali, WT |
| 2008 | GMC | Savana 1500 / 2500 / 3500 | Base, LS, LT |
| 2007-2008 | GMC | Yukon / Yukon XL 1500 / 2500 | SLE, SLT, Denali, Hybrid |
| 2008 | Hummer | H2 / H3 | Base, Alpha |
| 2005-2006 | Isuzu | Ascender | S, LS, Limited |
| 2005-2008 | Pontiac | Grand Prix GXP / GTO | GXP, Base |
| 2005-2008 | Saab | 9-7x | Arc, 5.3i, Aero |
Shipping
- In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Backordered items ship as soon as stock lands — contact us for lead times.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30-day returns on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
- Installed or used parts can’t be returned — confirm fitment before you install.
- Special orders and custom items are final sale.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Refund Policy
