✅ LIFETIME WARRANTY IF INSTALLED BY A CERTIFIED MACHINIST
✅ OEM or Better Quality Components
✅ FAST & FREE SAME-DAY SHIPPING
This complete Master Engine Rebuild Kit is designed for 2005–2010 Ford & Mercury 4.0L SOHC V6 engines with Balance Shaft (VIN “E” or “K”). Perfect for Ford Ranger, Explorer, Mercury Mountaineer, and Mazda B4000 applications.
Featuring hyper-eutectic flat-top pistons with coated skirts, MLS head gaskets, and a complete timing set, this kit provides the durability and reliability you need whether restoring stock performance or preparing for long-term dependability.
Unlike low-cost import kits, every Redline rebuild kit includes only ISO, QS & TS-certified components from trusted manufacturers. Each part is verified through three levels of inspection — factory audits, pre-shipment checks, and in-house quality testing.
That’s why all Redline engine rebuild kits qualify for our Lifetime Warranty (when installed by a certified machinist).
(1) Full Gasket Set – With MLS Head Gaskets, Rear Main Seal & Valve Stem Seals
(6) Hyper-Eutectic Flat-Top Pistons – With Coated Skirts
(6) Premium Moly Piston Rings
(1) Set Main Bearings – Sizes: STD, .010, .020, .030
(1) Set Rod Bearings – Sizes: STD, .010, .020, .030
(1) Balancer Bearing
(1) Full Timing Set
(1) Oil Pump
(1) Set Freeze Plugs
2005–2010 Ford 4.0L SOHC V6 (VIN “E” or “K”)
Fits engines with Balance Shaft
Ford Explorer (2005–2010)
Mercury Mountaineer (2005–2010)
Ford Ranger (2005–2010)
Mazda B4000 (2005–2010)
Pistons & Rings: STD, .020, .030, .040
Bearings (Rod & Main): STD, .010, .020, .030
⚠️ Ships with STD sizes by default. Please message us after purchase or leave a note in checkout if you require oversize components. If no message is received within 2 days, the kit will ship with all STD size parts.
Lifetime Warranty – Covered when installed by a certified machinist
OEM or Better Quality – Trusted brands like Enginetech, Hastings, Clevite, King Bearings, Cloyes, Melling, and Sealed Power
Complete Kit – Pistons, rings, bearings, gaskets, oil pump, timing components & more
Proven Reliability – Thousands of successful rebuilds using Redline kits
Fast & Free Shipping – Same-day order processing on most orders
30-Day Returns – No questions asked
No Restocking Fees – Unlike many sellers
Easy Exchanges – Return your kit, and we’ll ship replacements when received
Our Mistake? We Cover It – Return freight + replacement shipping covered
Redline Engine Supply is a proud American-owned company. Unlike overseas re-shippers, every order supports American families. We only sell parts we personally trust.
We also proudly support U.S. veterans — with 22 veterans lost to suicide daily, a portion of every sale is donated to charities supporting our men and women in uniform.
Our Promise: We always put our customers and community first.
Ford 4.0 SOHC engine rebuild kit, 2005–2010 Ford Ranger Explorer 4.0L overhaul, Mercury Mountaineer 4.0L rebuild set with balance shaft, Mazda B4000 4.0 V6 engine kit, OEM quality Ford 4.0 rebuild parts