Duramax 6.6L Fuel Filter Housing Assembly Kit 12642623 with TP3018
The 12642623 combo kit is a complete fuel filter housing replacement for 6.6L Duramax diesel trucks. One kit ships the billet aluminum filter head with integrated hand primer pump, the TP3018 element with 15 micron outer and 5 micron inner media at 98% water separation, and the 12639277 water-in-fuel sensor — the three parts serviced together.
| Tier Pricing (USD / unit) | |
|---|---|
| Qty | Unit Price |
| 1+ units | $73 |
| 10+ units🎯 Recommended | $69.35 |
| 50+ units | $62.05 |
| 100+ units | $58.40 |
📋 Key Specs
| Replaces | GM 12642623 fuel filter housing assembly |
| Kit contents | Filter head with hand primer pump, TP3018 element, 12639277 water-in-fuel sensor |
| Head material | Billet aluminum, unpainted high-temperature oxidation finish |
| Filter thread | M36 x 1.5 (Duramax spin-on) |
| Inlet / outlet ports | 1/2 in NPT |
| Element media | Multi-layer, 15 micron outer / 5 micron inner |
| Water separation | 98% (element rating) |
| Fuel compatibility | ULSD, B5-B20 biodiesel |
| Fitment | 2005-2013 Silverado / Sierra 2500HD; 2005-2007 Silverado / Sierra 3500; 2012-2016 Express / Savana 2500-4500, 6.6L Duramax |
❓ FAQ
One kit contains three parts: the billet aluminum fuel filter head with an integrated hand primer pump, one TP3018 fuel filter element, and one 12639277 water-in-fuel sensor — the three components normally serviced together on the 6.6L Duramax fuel filter housing.
Yes. The kit fits 2005-2013 Silverado and Sierra 2500HD, 2005-2007 Silverado and Sierra 3500, and 2012-2016 Express and Savana 2500-4500 with the 6.6L Duramax (LLY, LBZ, LMM, including 2004.5-2005 LLY). It does not fit 2017 and newer 6.6L Duramax (L5P), the 3.0L Duramax, or gasoline engines.
Yes, but the LB7 fuel line routing differs, so the installation requires about 3.5 feet of 1/2 inch fuel hose to extend or reroute the lines. That hose is not included in the kit.
Both. The element uses multi-layer media with a 15 micron outer layer and a 5 micron inner layer, and it is rated at 98% water separation. The head takes standard Duramax spin-on elements with an M36 x 1.5 thread.
No. The supplied sensor replaces GM 12639277 and uses an 8-sided body, which looks different from the 12-sided original but threads into the same port on the filter head and connects to the factory wiring.
MOQ varies by product: 5–100 units for standard parts (see product page). Tier pricing decreases with volume. Custom parts usually ≥ 50 units, evaluated by process.
Stock/short-run: 7–15 days; bulk orders 20–35 days; custom 30–45 days incl. sampling. Note your deadline in the inquiry — sales will confirm capacity.
Add products to the inquiry list and submit with contact info. Sales contact you within 24h and issue a formal quotation (tier pricing + proforma invoice) within 48h. The AI assistant can pre-fill inquiries in chat.
Yes. We develop from drawings/samples and support private labeling. Process: evaluation → sampling (15–25 days) → approval → mass production.
Payment: T/T 30% deposit + 70% before shipment / L/C / Trade Assurance. Shipping: FOB Ningbo/Shanghai, CIF or DDP; EU & NA warehouses; sea/air/express.
ISO 9001 & IATF 16949; CE/UL/ATEX on key products. Every batch ships with inspection reports; third-party inspection (SGS/BV) supported.
Description
Product Overview
The FJ-TP3018-COMB is a complete replacement for the GM 12642623 fuel filter housing assembly on 6.6L Duramax diesel trucks, shipped as one kit with three parts: a billet aluminum filter head with integrated hand primer pump, a TP3018 fuel filter element, and a 12639277 water-in-fuel sensor. It fits 2005-2013 Silverado and Sierra 2500HD, 2005-2007 Silverado and Sierra 3500, and 2012-2016 Express and Savana 2500-4500 vans with LLY, LBZ or LMM engine codes. One order covers the three components that are serviced together, so the head, the element and the sensor do not have to be sourced separately.
Key Features
Cross-Reference
Cross-reference numbers are listed for fitment identification; this kit is an aftermarket replacement part.
Specifications
Applications
Not for 2017 and newer 6.6L Duramax (L5P), the 3.0L Duramax, or gasoline engines. Confirm the model year and engine code on the vehicle data plate before ordering. Box contents: 1 x filter head assembly with hand primer pump, 1 x TP3018 fuel filter element, 1 x 12639277 water-in-fuel sensor. FJFilter supplies fuel, oil, air and hydraulic filtration components for diesel engines and equipment.
