Best Bonbo Car Crankshaft Seals in 2026

Rear main bearing oil seal installation set

Application specific design to ensure a perfect fit

Meets or exceeds all original equipment specifications

Fit type: Vehicle Specific

Package Dimensions: 1.27 H x 20.574 L x 8.89 W (centimeters)

Country of Origin : China

APPLICATION – Fit for Ford 4.5L, 6.0L & 6.4L Powerstroke Diesel Engine, Low Cab Forward, F-Super Duty 250-550, E-Series.（Specific application reference as following）.

FUNCTION -- Use for installation & removal of crankshaft rear seal wear ring for your Ford. Preventing your seal from leaking.

SUPERIOR MATERIAL -- Constructed from high standard forged steel for strength, durability, and longevity; coated with black oxide finish for resistance to rust and corrosion. Never worry wear or damage to the tool!

Dependable replacement

Economically priced

Provides the performance you expect from acdelco

Seals the openings on either end of the crankshaft for a tight seal

Withstands heat and pressure to help prevent the engine from leaking oil

GM-recommended replacement part for your GM vehicle’s original factory component

Design type: spring loaded; multi-lip

Temperature range: -40°F to 400°F / -40°C to 204°C

Excellent high temperature capabilities

Package Dimensions: 2.032 H X 9.144 L X 9.144 W (centimeters)

Package Weight: 0.022 pounds

Country of Origin : China

【High Quality Material】Made from quality carbon steel, is with great strength, corrosion resistance, anti-rust, impact resistance, wear resistance and durable.

【303-770 Crankshaft Rear Main Seal Installer】Used for installation of crankshaft rear seal wear ring for 4.5L,6.0L,6.4L power stroke.

【303-1259 Crankshaft Front Seal Installer】Used for installing crankshaft front seal/wear sleeve for Ford 6.4L power stroke engines F-series.

This installer works on crankshaft rear oil seals that come with or without a metal wear sleeve

Designed for use on 1993-1997 Aerostar or 1993-2006 Ranger and Explorer with 4.0L V6 engine

Similar to Ford No. 303-5524

Design type: spring loaded; multi-lip

Temperature range: -40°F to 225°F / -40°C to 107°C

Good low temperature capability

Design type: spring loaded; multi-lip

Temperature range: -40°F to 400°F / -40°C to 204°C

Excellent high temperature capabilities

Design type: spring loaded; multi-lip

Temperature range: -20°F to 300°F / -29°C to 49°C

Resistance to EP lubricants

Design type: springless; single-lip

Temperature range: -100°F to 450°F; -73°C to 232°C

Resistant to hydrocarbon/oxygenate blends and provides superior performance

Fitment: Perfectly fit for Ford 4.5L, 6.0L, 6.4L Powerstroke, F-250, F350, F-450, F-550, F-650, F-750, Low Cab Forward, E-Series, Excursion and VT 365-MaxxForce7

High Quality: Machined from heavy duty steel with excellent mechanical and physical properties, this Installer Tool is good in corrosion resistance and durability

Application: Used for installation and removal of Rear Crankshaft Seal & Wear Ring of Ford, it credibly prevents the seal from leaking

Product Type: Auto Part

Package Quantity: 1

Package Dimensions: 1.7 cms (L) x 7.5 cms (W) x 8.3 cms (H)

Design type: spring loaded; multi-lip

Temperature range: -40°F to 225°F / -40°C to 107°C

Good low temperature capability

【Great Compatibility】Perfectly fits for Cummins ISX QSX ISX15 ISX12 diesel engines. Direct replacement for OEM Part Number 3164780 3162994 4965569, saving your time, money and energy.

【High Performance】Specifically designed to effortlessly remove and install the crankshaft rear seal and wear ring/sleeve on diesel engine properly.

【Powerful Features】This specialty tool 3164780 help reduce risk of crankshaft seal surface damage during removal. Also the rear seal and wear ring is automatically installed to the proper depth with this specialty tool 3164780, prevents damaging the rear seal and leakage.

Wide Application: Fits for 2011-2021 Ford Super Duty F-250, F-350, F-450, F550, equipped with 6.7L Power Stroke Diesel and 2016-2021 Ford Super Duty F-650, F-750 equipped with 6.7L Power Stroke Diesel # Alt ST-148

High Quality: Made of high quality carbon steel for, the surface is coated with black anti-oxidation coating, which has high hardness, high strength, wear resistance, with stable performance and reliable use and longer service life.

Application: It helps to remover the wear sleeve and seal of the rear crankshaft more easily without damaging the seal and leakage. Make sure that the installation depth of crankshaft oil seal is correct.

Low swell in hydrocarbon fluids

Design type: spring loaded; multi-lip

Provides good low temperature capability

Gasket Rear Crankshaft Seal Housing

BMW part# 11 14 1 432 240, check fit below.

Recently made by VICTOR REINZ, not been lying around.

Converts the reciprocating motion of the piston

Retains lubricating oil

Offers superior service life and long lasting durability

Application – Use on Front and Rear Crankshaft Seal Wear Sleeve for Caterpillar 3406, 3408, C-15.

Replacement – Equivalent to Caterpillar CAT 6V-6142, 6V-6143, 5P-1737 (3), 9S-8858 and 5P-1733. Use with oil seal number 142-5867, 142-5868, 2W1734, 336012 and 319-0785.

Function – Used to easily install the oil seal and avoid damage to the car parts. This tool is required to protect your rear seal from leakage.

Perfect Fitment – This front and rear crankshaft seal wear sleeve installer is specially designed for Caterpillar CAT 3406, 3408, C-15 trunk engines.

Practical Function – This tool set will help you install the oil seal at ease and avoid any damage to the vehicle parts, which is required to protect your rear seal from leakage.

Direct Substitution – Alternative to Caterpillar CAT 6V-6142, 6V-6143, 5P-1737 (3), 9S-8858 and 5P-1733.

Engine Saver Hardware cost-saving application

Repairs worn sealing surfaces to assure a leak free repair

Meets or exceeds all original equipment specifications

Compatibility: Used on front and rear crankshaft seal wear sleeve for Caterpillar 3406, 3408, C-15.

Replacement Part Number: Equivalent to Caterpillar CAT 6V-6142, 6V-6143, 5P-1737 (3), 9S-8858 and 5P-1733. Oil seal number used with: 142-5867, 142-5868, 2W1734, 336012 and 319-0785.

Great Performance: Used to replace the oil seal or sleeve for your diesel engine easily & quickly, avoid damage to the car parts, this tool gonna protect your seal from leakage as well.

Application : For 2011-2021 Ford Super Duty F-250, F-350, F-450 and F-550（equipped with 6.7L Power Stroke Diesel）, For Ford Super Duty F-650 F-750 2016-2021（equipped with 6.7L Power Stroke Diesel）.

Replace Part Number : 303-1514.Alternate ST-138

Function : 303-1514 is used to install the rear crankshaft seal without damaging the seal, it credibly prevents the seal from leaking.Make sure that the installation depth of crankshaft oil seal is correct.

【APPLICATION】: Fits for 2011-2019 Ford Super Duty F-250, F-350, F-450, and F-550 equipped with 6.7L Power Stroke Diesel model; 2016-2019 Ford Super Duty F-650/750 equipped with 6.7L Power Stroke Diesel model.

【MATERIAL】: Constructed from high standard forged steel for strength, durability, and longevity; coated with black oxide finish for resistance to rust and corrosion. Never worry wear or damage to the tool!

【FUNCTION】: This rear main seal remover tool can help you remove the crankshaft seal effortlessly. Perfectly remove the crank seal without any possible damage and prevent your seal from leaking.

Great Compatibility – Fits for Ford Super Duty F-250, F350, F-450, F-550 2011-2021 6.7L Diesel. Fits for Ford Super Duty F-650, F-750 2016-2021 6.7L Diesel. Also fits for Low Cab Forward, E-Series and Excursion.

Practical Function – This tool kit is used to install or remove the front and rear crankshaft wear sleeves and seals, helping you finish the installation and removal at ease without any leakage. This tool will not remove the Flywheel Adapter Plate.

Package Includes – 1 x 303-1509 & 303-1509-01 6.7L Front Crankshaft Seal Installer Tool (Alt ST-137B), 1 x 303-1514 6.7L Rear Crankshaft Seal Installer (Alt ST-138), 1 x 303-1513 6.7L Rear Crankshaft Seal Remover (Alt ST-148), 1 x 303-1510 6.7L Front Crankshaft Seal Remover (Alt ST-152).

Package dimensions: 4.9 cms L x 11.8 cms W x 12.3 cms H

Package quantity: 1

Product type: Auto_Part

Product Type:Auto Part

Item Package Dimensions:5.34 " L X 4.38 " W X 0.96 " H

Item Package Quantity:1