Vehicle Compatibility (For Toyota / Lexus 5.7L 3UR-FE V8 Engines ONLY):
(Fitment Note: Strictly fits the 5.7L 3UR-FE V8 engine. Does NOT fit General Motors Ecotec engines. Please verify your engine displacement before purchasing.)
Compatible Vehicles for Toyota (5.7L 3UR-FE V8):
2007-2020 Toyota Tundra (5.7L)
2008-2020 Toyota Sequoia (5.7L)
2008-2020 Toyota Land Cruiser (5.7L)
Compatible Vehicles for Lexus (5.7L 3UR-FE V8):
2008-2020 Lexus LX570 (5.7L)
Interchange/OE Part Numbers: 13561-0S020, 13561-0S021, 13506-0S010, 13521-38020, 13521-38030, 13522-38020, 13522-38030.
Shipping & Package Specifications:
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Item Weight: 8.95 pounds
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Package Dimensions: 13.58 x 10.28 x 4.61 inches
What's Included in the Package List:
- 2x Primary Timing Chains
- 2x Secondary Timing Chains (Upper)
- 2x Primary Timing Chain Tensioners (Left & Right)
- 2x Secondary Timing Chain Tensioners (Upper)
- 2x Timing Chain Guide Rails (Fixed)
- 2x Timing Chain Tensioner Arms (Curved)
- 1x Crankshaft Sprocket Gear
- 1x Idler Sprocket Gear
Restore Heavy-Duty V8 Performance: Master Timing Chain Overhaul Kit for Toyota/Lexus 5.7L 3UR-FE
Are you experiencing a loud cold-start rattle, rough idling, or persistent timing-related fault codes in your legendary Toyota or Lexus 5.7L V8? The 3UR-FE is an absolute workhorse built for heavy towing, overlanding, and extreme longevity. However, as these high-displacement engines rack up serious mileage, the factory timing chains stretch and the hydraulic tensioners degrade. Left unaddressed, timing slack can lead to catastrophic internal valvetrain damage. Restore factory-level precision and bulletproof reliability to your truck or SUV with this Ultimate Master Timing Chain Kit. Engineered strictly for the Toyota/Lexus 5.7L 3UR-FE V8 platform, this comprehensive package provides every essential heavy-duty component required for a complete front-end engine rebuild.
Because performing a front-end teardown on a massive 5.7L V8 is labor-intensive, sourcing individual chains and tensioners is frustrating and risks unmatched wear patterns. This premium master overhaul package is designed to maximize the value of your teardown by including two high-strength primary timing chains and two secondary upper chains. To guarantee a precisely synchronized and noise-free rebuild, the kit is completed with upgraded left/right primary tensioners, secondary tensioners, precision-machined sprockets, and a full set of heavy-duty guide rails.
Key Features & Included Components:
Complete V8 Chain Set: Includes 2x high-strength primary timing chains and 2x secondary upper chains engineered to resist stretching under heavy towing loads.
Complete Hardware: Features 2x primary tensioners (Left & Right), 2x secondary upper tensioners, 2x fixed guide rails, and 2x curved tensioner arms for a bulletproof front-end service.
Precision Sprockets: Comes with 1x Crankshaft Sprocket Gear and 1x Idler Sprocket Gear to ensure perfect timing synchronization.
(⚠️ CRITICAL FITMENT NOTE: This master timing kit is engineered STRICTLY for the Toyota and Lexus 5.7L 3UR-FE V8 engines. It DOES NOT fit smaller displacement variants like the 4.6L (1UR-FE) or any other platforms. Please carefully verify your exact engine displacement, vehicle year, and OE part numbers before purchasing to ensure proper fitment.)
Engineered to meet or exceed strict OEM specifications for long-lasting, noise-free performance under extreme loads. This comprehensive upgrade kit flawlessly fits a massive lineup of legendary Toyota and Lexus flagship platforms, including the 2007-2020 Toyota Tundra, 2008-2020 Sequoia, 2008-2020 Land Cruiser, and the 2008-2020 Lexus LX570. Rebuild your V8 the right way with BTSCAR's premium replacement components and hit the road with absolute confidence.
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
