TP1015 FUEL FILTER & 134001 ALUMINUM HOUSING CAP FOR 6.6L DURAMAX L5P 2017-2020 SILVERADO SIERRA 2500HD 3500HD | IFJF

iFJF part No.: FJ-TP1015-CAP07-RD. Upgrade Your Duramax L5P Fuel System TP1015 Filter & 6061-T6 Billet Aluminum Housing Cap Engineered for 2017 2020 Chevy Silverado & GMC Sierra 2500HD/3500HD equipped with the 6.6L L5P Duramax diesel engine , the iFJF TP1015 Fuel Filter & 134001 Housing Cap Combo Kit solves the two biggest pain points of L5P fuel system maintenance: factory plastic cap failures and subpar filtration . One kit. One install. Total peace of mind. The Problem with OEM L5P Fuel Filter Caps The factory 134001 plastic housing cap on 2017 2020 Duramax L5P trucks is a known weak point. Overtighten it by even a quarter turn and the plastic cracks leaving you with a fuel leak, a check engine light, and a $200+ tow to the nearest shop. GM TSB #18-NA-103 documents this exact issue. iFJF replaces that brittle plastic with a CNC-machined 6061-T6 billet aluminum cap the same aerospace-grade alloy used in performance fuel systems. It won't crack. It won't warp. It won't leave you stranded. Why iFJF TP1015 vs. OEM Specification iFJF TP1015 OEM (ACDelco) Cap Material 6061-T6 Billet Aluminum Nylon Plastic Filter Micron Rating 5 Micron (Absolute) 7 10 Micron (Nominal) Water Separation 98% Efficiency ~95% Efficiency Filter Media Multi-Layer Synthetic Blend Cellulose Paper O-Ring Included 2 Premium Viton O-Rings 1 Standard O-Ring Drain Plug Anodized Aluminum (5 Color Options) Plastic (Non-Serviceable) Price (Filter + Cap) $69.99 $95 $130 (Filter + Cap separately) Compatible Vehicles Chevrolet Silverado 2500HD / 3500HD 2017 2018 2019 2020 6.6L L5P Duramax Turbo Diesel V8 GMC Sierra 2500HD / 3500HD 2017 2018 2019 2020 6.6L L5P Duramax Turbo Diesel V8 Also Fits: Chevy Cruze 2.0L Diesel (2014 2015), Chevy Cruze 1.6L Diesel (2017 2019) Cross-Reference / Replaces OEM Part Numbers Fuel Filter: TP1015 22937279 23456595 23304096 ACDelco TP1015 Housing Cap: 134001 ACDelco 134001 Technical Specifications Filter Media: Multi-layer synthetic blend with pleated cellulose core superior dirt-holding capacity vs. OEM paper Filtration Rating: 5 micron absolute captures 99.9% of particles 5 m (OEM paper elements typically rate 7 10 m nominal) Water Separation: Hydrophobic barrier layer achieves 98% water removal efficiency , protecting CP4.2 high-pressure fuel pump from water-induced cavitation damage Cap Material: CNC billet 6061-T6 aluminum with black anodized finish on Silver variant Cap Design: 32mm hex head for standard socket wrench no special tools needed Drain Plug: Integrated anodized aluminum drain valve for easy water drainage during service intervals O-Rings: 2 premium Viton fluoroelastomer O-rings (cap seal + filter seal) rated to 400 F, diesel-resistant Service Interval: Replace every 15,000 22,500 miles (24,000 36,000 km) or per GM maintenance schedule Torque Spec: 25 3 N m (18 2 ft-lbs) no risk of cracking vs. plastic cap Available Finishes 5 Anodized Colors Choose the cap color that matches your build: Red Aggressive, race-inspired look Gold Premium, standout finish Green Subtle OEM+ appearance Silver Classic machined aluminum with black trim Black Stealth, factory-look finish What's in the Box 1 TP1015 Fuel Filter (multi-layer synthetic blend media, 5 m) 1 134001 Housing Cap (CNC 6061-T6 billet aluminum) 1 Anodized aluminum drain plug (pre-installed) 2 Viton O-rings (large cap seal + small filter seal) 1 Installation instruction card Installation Tips PRIME THE FILTER: Fill the new filter with clean diesel before installing this prevents the C