COMETIC GASKET C7700 Crank Crankshaft Oil Seal Kit 1988 1987

( Brand: Cometic Gasket ), ( Manufacturer Part Number: C7700 ), ( Part Type: Oil Seal Crank Crankshaft ), ( Year: 1988, 1987, 1986 )

Review COMETIC GASKET Crank Crankshaft Oil Seal Kit Suzuki fits RM125 1986–1988

The **Cosmetic Gasket C7700 Crankshaft Oil Seal Kit** is a meticulously engineered replacement solution designed specifically for the **Suzuki RM125** models produced between **1986 and 1988**, ensuring a precise fit and optimal performance for these iconic off-road motorcycles. This high-quality kit is crafted to address the critical function of sealing the crankshaft, preventing oil leaks that can compromise engine efficiency, reduce power output, and lead to costly internal damage over time. The oil seal within this kit features a **reinforced rubber compound** reinforced with high-grade synthetic fibers, providing superior durability against heat, pressure, and the abrasive forces encountered during aggressive riding conditions. Its **precision-molded design** ensures a snug, interference-free fit against the crankshaft journals, minimizing wear while maintaining a reliable barrier against oil seepage. The kit includes **all necessary components**, including the oil seal itself, a **new gasket for the crankcase cover**, and often a **replacement crankshaft oil seal retainer ring** where applicable, ensuring a complete and hassle-free installation. Whether you're restoring a classic RM125 to its former glory or performing routine maintenance to extend the life of your bike, this kit delivers the reliability and performance you need. Built to withstand the demands of off-road use, it helps maintain engine cleanliness, reduces friction, and protects against premature wear making it an essential upgrade for any Suzuki RM125 owner seeking long-term reliability and peak mechanical efficiency.

### **Pros and Cons of buying a Cosmetic Gasket C7700 Crankshaft Oil Seal Kit for a Suzuki RM125 (1986-1988)**

1. **Direct Fitment** The kit is specifically designed for the Suzuki RM125 models from 1986 to 1988, ensuring compatibility without modifications.

2. **High-Quality Materials** Cosmetic Gasket is known for producing durable seals made from high-grade rubber and reinforced materials, which can withstand engine heat and pressure better than generic alternatives.

3. **Pre-Lubricated** Many oil seals in this kit come pre-lubricated, reducing the risk of dry-out and extending the seal s lifespan.

4. **Easy Installation** The kit typically includes clear instructions and may come with tools or guides to simplify the replacement process, especially for those with basic mechanical experience.

5. **Prevents Oil Leaks** A failing crankshaft oil seal is a common source of oil leaks in older motorcycles. Replacing it with a new, properly fitted seal helps maintain engine integrity and prevents costly damage from oil contamination.

6. **Cost-Effective** While not the cheapest option, it is often more affordable than a full engine rebuild or replacement parts due to wear from a leaking seal.

7. **Improved Engine Performance** A properly sealed crankshaft prevents oil from entering the transmission or exhaust system, reducing friction and maintaining optimal lubrication.

1. **Limited Availability** Depending on the region, finding this specific kit may require ordering from specialty motorcycle parts suppliers, which could involve shipping delays.

2. **Installation Complexity** Replacing a crankshaft oil seal requires removing the engine from the frame (or at least the clutch assembly) and may involve disassembling the transmission. This can be time-consuming and challenging for beginners.

3. **Potential for Misalignment** If not installed correctly, the seal could be improperly seated, leading to premature failure or leaks. Precision is key when pressing the seal into place.

4. **Cost Compared to Alternatives** While not extremely expensive, the kit may be pricier than aftermarket or generic seals from lesser-known brands, though the quality often justifies the price.

5. **Additional Wear Check** During installation, it s an opportunity to inspect other components like the clutch, bearings, or crankshaft for wear. If these are also failing, the repair cost could increase beyond just the seal.

6. **Lifespan Depends on Usage** Even with a high-quality seal, its longevity depends on riding conditions, maintenance, and how well it was installed. Aggressive riding or neglect can shorten its life.

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The **Cosmetic Gasket C7700 crankshaft oil seal kit** is a reliable choice for Suzuki RM125 owners from 1986 to 1988 due to its direct fitment, durability, and ease of use compared to generic seals. It addresses a common issue (oil leaks) that, if ignored, can lead to more severe engine problems. However, the installation process is not trivial and may require mechanical skill or assistance. For those comfortable with basic motorcycle repairs, this kit offers a balance of quality and performance. If budget is a concern, alternatives like OEM or reputable aftermarket seals should be considered, but they may not match the precision and longevity of Cosmetic Gasket s products.

- **Buy the kit** if you re confident in your ability to install it properly or if you have access to a mechanic familiar with Suzuki RM125 repairs. The investment in a quality seal will pay off in the long run by preventing leaks and maintaining engine health.

- **Consider alternatives** (e.g., OEM seals or other trusted brands) only if the Cosmetic Gasket kit is unavailable or significantly overpriced in your area.

- **Pair the repair with a full inspection** of the clutch, bearings, and crankshaft to ensure no other components are failing and to avoid future issues.

- **Follow installation instructions carefully** to avoid misalignment or damage during press-fitting. If unsure, consult a professional.

Details:

Cometic, Crank Seal Kit, This item fits the following model's: Suzuki RM125 1988, Suzuki 1987, 1986. Any damage claims may be exchanged for the identical item only. Sold as: Set. Oil seals meet and exceed OEM specifications.

part #: c7700 prices

• $12.49-$14.36

specifications bearingmotorcycleiz:

• for models: Rm125
• for makes: Suzuki
• for years: 1986-1988
• brand: Cometic Gasket
• mpn: C7700
• part type: Oil Seal Crank Crankshaft
• year: 1988, 1987, 1986

offer bearingmotorcycleiz:

• quantity: 4
• started: April 14, 2026
• sold: 0
• availability: In Stock
• options: Ship-to-home

shipping bearingmotorcycleiz:

• cost: $0.00
• service: Economy, Standard, Expedited
• transit: 3-8 Days
• type: Fixed
• class: Economy, Standard, Expedited

seller bearingmotorcycleiz:

• city: Loudon, Tennessee
• # reviews: 637572
• rating: 99.6%

returns bearingmotorcycleiz:

• paid by: Seller
• policy: Returns Accepted
• time: 30 Days

payments bearingmotorcycleiz:

• credit card: Mastercard
• other
• wallet: Paypal

general bearingmotorcycleiz:

• condition: New
• Motorcycle Scooter Parts Accessories > Engines Engine Parts > Engine Bearings

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