Front Crankshaft Seal Replacement Cost Guide
The cost to replace a front crankshaft seal varies depending on your vehicle's make and model. Here's a general breakdown:
Economy Cars & Small Sedans
Labor Time:1.5-2.5 hours
Labor Cost:$187-$312
Parts Cost:$15-$30
Total Estimated Cost:$202-$342
Mid-Size & Luxury Sedans
Labor Time:2-3.5 hours
Labor Cost:$250-$437
Parts Cost:$25-$45
Total Estimated Cost:$275-$482
SUVs & Light Trucks
Labor Time:2.5-4 hours
Labor Cost:$312-$500
Parts Cost:$30-$60
Total Estimated Cost:$342-$560
Note: These are estimated costs based on our shop rate of $125/hour. Additional costs may apply if related components need replacement or if there are accessibility challenges specific to your vehicle.
What Affects the Cost
- Vehicle make and model
- Engine design and accessibility
- Additional parts that may need replacement (timing belt, pulleys, etc.)
- Severity of the leak and any related damage
Professional Tip:If your vehicle is due for a timing belt service, it's cost-effective to replace the front crankshaft seal at the same time since much of the labor overlaps.
Front Crankshaft Seal Replacement Procedure
The front crankshaft seal is a crucial engine component that prevents oil from leaking where the crankshaft exits the engine block. Here's the typical replacement procedure:
Safety Preparations
1.Ensure vehicle is parked on a level surface
2.Engage parking brake
3.Disconnect battery negative terminal
Access Steps
4.Remove drive belts
5.Remove harmonic balancer/crankshaft pulley
6.Remove timing cover if necessary (engine specific)
Seal Removal
7.Inspect old seal for wear patterns and damage
8.Remove old seal using appropriate seal removal tool
9.Clean sealing surface thoroughly
10.Inspect crankshaft surface for scoring or damage
New Seal Installation
11.Apply thin coat of clean engine oil to new seal lip
12.Install new seal using proper seal installation tool
13.Ensure seal is seated properly and evenly
Reassembly
14.Reinstall timing cover if removed
15.Reinstall harmonic balancer/crankshaft pulley
16.Reinstall drive belts
17.Reconnect battery
Final Steps
18.Start engine and check for leaks
19.Check and adjust belt tension if necessary
Note:This procedure may vary depending on vehicle make and model. Some vehicles may require additional steps or special tools. Professional installation is recommended to ensure proper seal function and prevent oil leaks.
Estimated Time:2-4 hours depending on vehicle model and accessibility
Warning:Improper installation can lead to oil leaks and potential engine damage. If you're unsure about any step, please consult a professional mechanic.
What is a Front Crankshaft Seal

AFront Crankshaft Sealis a crucial engine component that creates a tight seal between the crankshaft and the front timing cover of your engine. This rubber seal is designed to prevent oil from leaking out of the engine while allowing the crankshaft to rotate freely.
What Does a Front Crankshaft Seal Do
The Front Crankshaft Seal serves several important functions:
- Oil Retention:It keeps engine oil inside the engine where it belongs, preventing leaks that could lead to low oil levels and engine damage.
- Contamination Prevention:The seal stops dirt, debris, and other contaminants from entering the engine through the front of the crankshaft.
- Pressure Maintenance:It helps maintain proper oil pressure within the engine by preventing pressure loss through the front of the crankshaft.
When this seal fails, you may notice:
- Oil dripping from the front of your engine
- Low oil levels
- Burning oil smell
- Decreased engine performance
Regular inspection and timely replacement of your Front Crankshaft Seal is essential for maintaining your engine's health and preventing costly repairs.
Common Failure Symptoms of Front Crankshaft Seal
Front Crankshaft Seal: Signs of Failure & Maintenance Guide
Common Signs of Front Crankshaft Seal Failure:
1. Oil Leaks
The most obvious sign is oil dripping or accumulating at the front of the engine, typically near the crankshaft pulley or timing cover area.
2. Burning Oil Smell
If oil is leaking onto hot engine components, you may notice a distinct burning oil odor while driving.
3. Low Oil Levels
Frequent need to top up engine oil between regular service intervals can indicate a leaking front crankshaft seal.
4. Oil-Soaked Belts
Oil leaking from the seal can contaminate the serpentine or timing belt, potentially causing premature belt failure.
Typical Service Schedule:
Inspection:
• Visual inspection during every oil change (typically every 5,000-7,500 miles)
• Thorough inspection during timing belt service
Replacement:
• No set replacement interval - replace when showing signs of wear or leakage
• Often replaced preventively during timing belt service (60,000-100,000 miles)
• Recommended replacement if removing timing cover for other repairs
Factors Affecting Seal Life:
• Engine age and mileage
• Operating conditions
• Oil change frequency
• Climate and temperature extremes
Note: Addressing a leaking front crankshaft seal promptly can prevent more expensive repairs and maintain proper engine operation.
How It Works
- Get a quote online or set-up a time to have your vehicle looked at.
- Pick time slots that work for you, easily, online.
- We will confirm appointments and send reminders.
- Our mechanics bring everything that is needed to you.
- All you have to do is provided a safe area for the work to be performed.
What we need from you
- A safe place to work on your vehicle
- No working on the side of busy roads
- No working on unstable or steep surfaces.
- We do not perform repairs during severe weather.
- Authorization from a property owner or management.
- Repair work done in a parking lot or at your requires permission.
- We do not do repairs in areas restricted by law.
Common Questions
Service Area
Our primary service area is greater Grand Rapids and includes Comstock Park, East Grand Rapids, Grandville, Kentwood, Walker, and Wyoming
Our secondary service area is provided by our Belding location and includes: Belding, Greenville, Ionia and the sorrounding areas.
Contact us if you have any questions about where we provide services.