Vehicle Compatibility (For GM LS-Series V8 Engines):
(Fitment Note: Fits a wide range of Gen III / Gen IV LS-based V8 engines. Highly recommended for LS1, LS2, LS3, LQ4, LM7 builds. Please verify your exact year, model, and engine displacement before purchasing.)
Compatible Vehicles for Chevrolet (LS V8):
1999-2013 Chevrolet Silverado 1500 (4.8L / 5.3L / 6.0L)
2000-2014 Chevrolet Tahoe / Suburban 1500 (4.8L / 5.3L)
2003-2020 Chevrolet Express 2500 / 3500 (4.8L / 5.3L / 6.0L)
2002-2013 Chevrolet Avalanche 1500 (5.3L)
1999-2015 Chevrolet Camaro (5.7L / 6.2L)
1999-2013 Chevrolet Corvette (5.7L / 6.0L / 6.2L)
Compatible Vehicles for GMC & Others (LS V8):
1999-2013 GMC Sierra 1500 (4.8L / 5.3L / 6.0L)
2000-2014 GMC Yukon (4.8L / 5.3L / 6.0L)
2003-2020 GMC Savana 2500 / 3500 (4.8L / 5.3L / 6.0L)
2001-2019 GMC Sierra 2500 HD / 3500 HD (6.0L)
2004-2007 Cadillac CTS (5.7L / 6.0L)
2002-2006 Cadillac Escalade (5.3L / 6.0L)
2008-2009 Pontiac G8 (6.2L) / 2004-2006 Pontiac GTO (5.7L / 6.0L)
2004-2007 Buick Rainier (5.3L) / 2003-2009 Hummer H2/H3 (5.3L / 6.0L)
Interchange/OE Part Numbers: M295HV, TCS45993, 12557840, 12586665.
Shipping & Package Specifications:
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Item Weight: 5.00 pounds
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Package Dimensions: 15.0 x 12.0 x 3.0 inches
What's Included in the Package List:
- 1x M295HV High Volume Oil Pump (w/ O-Rings)
- 1x Front Timing Cover Gasket
- 1x Front Crankshaft Seal
- 1x Water Pump Gasket Set
- 1x Harmonic Balancer / Crankshaft Pulley Bolt (Torque-to-Yield)
- 1x Oil Pump Pickup Tube O-Ring Kit
Upgrade Oil Pressure & Front-End Sealing: Ultimate High-Volume Oil Pump & Front Gasket Kit for GM Gen III / IV LS V8
Are you experiencing annoying lifter tick, low oil pressure warnings when idling hot, or valvetrain noise in your GM LS-series V8? Maintaining stable oil pressure is the single most critical factor for the longevity of Gen III and Gen IV V8 powerplants, especially under heavy towing, high-RPM performance driving, or demanding LS swap setups. Eliminate dangerous oil starvation and quiet your valvetrain with this Ultimate High-Volume Oil Pump & Front Seal Kit. This comprehensive heavy-duty upgrade package provides every essential component to overhaul your engine's front-end lubrication and seal out stubborn leaks.
The centerpiece of this performance upgrade is the premium M295HV-spec High-Volume Oil Pump. Engineered to deliver an 18% increase in oil flow volume over standard factory pumps, it provides the vital extra lubrication needed to support aftermarket oil coolers, quiet noisy lifters, and protect critical engine bearings under extreme stress. Because dropping the oil pan and front cover is a labor-intensive job, this kit maximizes your time and effort by bundling the upgraded pump with a complete front-timing cover gasket set, crucial pickup tube O-rings, and a brand-new Harmonic Balancer bolt. Crucially, the harmonic balancer bolt is a Torque-to-Yield (TTY) fastener—meaning it is a mandatory, single-use item that must be replaced during any front-end service to prevent catastrophic pulley slippage.
Key Features & Included Components:
M295HV-Spec High-Volume Oil Pump: Delivers an 18% oil volume increase to guarantee optimal lubrication, eliminate lifter tick, and prevent oil starvation during heavy payloads or high-RPM operation.
Complete Front-End Reseal Gaskets: Includes a premium front timing cover gasket, a fresh front crankshaft seal, and a complete water pump gasket set to ensure an absolute, leak-free reassembly.
Mandatory TTY Balancer Bolt: Comes complete with a brand-new Torque-to-Yield (TTY) harmonic balancer/crankshaft pulley bolt to ensure reliable torque retention and secure holding force.
Critical Installation Accessories: Features a complete oil pump pickup tube O-ring kit and premium replacement seals to ensure a seamless, hassle-free installation.
(⚠️ CRITICAL FITMENT NOTE: This master lubrication upgrade kit is engineered for specific GM Gen III and Gen IV LS-based V8 engines (4.8L, 5.3L, 5.7L, 6.0L, 6.2L). It is highly recommended for performance LS1, LS2, LS3, LQ4, and LM7 builds. Please carefully verify your engine's year, model, and displacement before purchasing to ensure a perfect fit.)
Free standard U.S. shipping
Eligible orders ship free to physical street addresses in the contiguous 48 states and Washington, DC. Orders normally process within 1 business day; transit is estimated at 3–5 business days, for 4–6 business days total after ordering. Business days exclude weekends and U.S. public holidays. Delivery estimates are not guaranteed. Alaska, Hawaii, U.S. territories, international destinations, P.O. Boxes and APO/FPO addresses are not supported.
Fulfillment and tracking
Eligible orders are fulfilled through Amazon Multi-Channel Fulfillment (MCF). BTSCAR remains the seller and handles customer service. Tracking is emailed after dispatch.
30-day returns and exchanges
Request an eligible return within 30 days of delivery. Standard returns must be new, unused, uninstalled and complete with original packaging. BTSCAR supplies a free prepaid return label, including for eligible change-of-mind returns, and charges no restocking fee. Contact support@btscar-us.com for authorization before returning anything; use only our label and instructions.
Refunds
After an eligible return is received and inspected, the refund is issued to the original payment method within 7 days. Bank posting times may be longer.
Full policies: https://btscar-us.com/policies/shipping-policy and https://btscar-us.com/policies/refund-policy
12-month limited warranty
Eligible products purchased directly from btscar-us.com are covered for 12 months from delivery against verified defects in materials or workmanship under normal automotive use.
Installed products
Installation does not automatically void warranty coverage. Installed items are not eligible for standard returns, but covered defects may qualify for warranty service. Incorrect installation, inadequate lubrication, contamination, overheating, misuse, racing, modifications and normal wear are excluded. Labor, diagnosis, towing and consequential expenses are excluded to the extent permitted by law. Statutory consumer rights remain unaffected.
Claim support
Email support@btscar-us.com with your order number, product or SKU, vehicle details and a description with photos or video. We may request reasonable installation or diagnostic information. Approved claims may receive replacement parts, an equivalent replacement, or a refund if no suitable replacement is available. We provide a prepaid label when an approved warranty item must be returned. Wait for our instructions before shipping.
Customer service
Phone / WhatsApp: +86 158 1943 1912. Daily, 10:00 AM–10:00 PM (GMT+8). We aim to respond within 24 hours; this is a target, not a guarantee.
Full warranty: https://btscar-us.com/pages/warranty-policy
