This is a front crankshaft seal and wear ring installer tool for use on Ford Powerstroke 6.4L and VT365-MaxxForce7. This tool will work on the following applications:Ford Powerstroke 6.4L Diesel : F-250 F-350 F-450 F-550 Super Duty 2008, 2009, and 2010VT365-MaxxForce7This is a replacement to part # ZTSE-4691, and 303-1259
The ATC ZTSE 4691 Front Crankshaft Seal and Wear Ring Installer is a professional specialty tool engineered to precisely install the front crankshaft oil seal and wear ring on Ford 6.4 L PowerStroke diesel engines as well as the VT365/MaxxForce7 platform. This tool serves as a direct replacement for the OEM Ford reference 303-1259 / ZTSE-4691, ensuring technicians can reinstall these critical components with the correct alignment and seating force required for reliable, leak-free service.
On heavy-duty diesel engines like the 6.4 L PowerStroke found in 2008–2010 Ford Super Duty F-250, F-350, F-450, and F-550 trucks, accurately installing the front crankshaft seal and wear ring is essential to prevent oil leaks and maintain proper crankshaft lubrication. Improper installation with improvised tools can distort the seal or flare the wear ring lip, leading to premature failure or costly rework. The ATC ZTSE 4691 installer provides a controlled, concentric press fit to eliminate these risks and help technicians achieve OEM-like results.
Built for durability and repeated professional use, this installer is ideal for heavy-duty truck dealerships, fleet maintenance shops, and diesel service facilities performing front crank seal replacement or engine rebuild operations. Quality construction ensures consistent performance and long-term reliability.
Key Features & Benefits
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OEM-equivalent front crankshaft seal and wear ring installer for 303-1259 / ZTSE-4691 applications.
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Precisely installs the front crankshaft oil seal and wear ring on Ford 6.4 L PowerStroke engines.
-
Helps prevent seal distortion, wear ring lip flare, and crankshaft damage.
-
Ensures proper seating depth and alignment for optimal sealing and engine performance.
-
Heavy-duty construction for repeated professional shop use.
-
Ideal for service departments, professional diesel mechanics, and fleet maintenance technicians.
Applications
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Ford 6.4 L PowerStroke diesel engines (Super Duty F-250, F-350, F-450, F-550 — 2008–2010).
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VT365 / MaxxForce7 engines where front seal and wear ring installation is required.
-
Professional diesel engine rebuilds, front seal replacement, and crank service.
On heavy-duty diesel engines like the 6.4 L PowerStroke found in 2008–2010 Ford Super Duty F-250, F-350, F-450, and F-550 trucks, accurately installing the front crankshaft seal and wear ring is essential to prevent oil leaks and maintain proper crankshaft lubrication. Improper installation with improvised tools can distort the seal or flare the wear ring lip, leading to premature failure or costly rework. The ATC ZTSE 4691 installer provides a controlled, concentric press fit to eliminate these risks and help technicians achieve OEM-like results.
Built for durability and repeated professional use, this installer is ideal for heavy-duty truck dealerships, fleet maintenance shops, and diesel service facilities performing front crank seal replacement or engine rebuild operations. Quality construction ensures consistent performance and long-term reliability.
Key Features & Benefits
-
OEM-equivalent front crankshaft seal and wear ring installer for 303-1259 / ZTSE-4691 applications.
-
Precisely installs the front crankshaft oil seal and wear ring on Ford 6.4 L PowerStroke engines.
-
Helps prevent seal distortion, wear ring lip flare, and crankshaft damage.
-
Ensures proper seating depth and alignment for optimal sealing and engine performance.
-
Heavy-duty construction for repeated professional shop use.
-
Ideal for service departments, professional diesel mechanics, and fleet maintenance technicians.
Applications
-
Ford 6.4 L PowerStroke diesel engines (Super Duty F-250, F-350, F-450, F-550 — 2008–2010).
-
VT365 / MaxxForce7 engines where front seal and wear ring installation is required.
-
Professional diesel engine rebuilds, front seal replacement, and crank service.
