TRIUMPH BSA 70-9395 Timing Cover TR25W B44

( Brand: Triumph Bsa ), ( Manufacturer Part Number: 70-9395 ), ( Part Type: Timing Cover )

Review TRIUMPH BSA B44 Timing Side Cover Part No Cracks Good fits B25 B50

The **Triumph BSA 70-9395 TR25W Timing Cover** is a meticulously crafted, high-performance component designed exclusively for the iconic Triumph BSA TR25W and its variants, including the B25, B44, and B50 models produced between the late 1960s and early 1970s. This precision-engineered timing cover serves as both a protective housing for the engine s critical timing mechanism and a stylish aesthetic statement, blending functionality with the classic British motorcycle heritage of the brand. Crafted from high-quality die-cast zinc alloy, the cover is built to withstand the rigors of daily riding while maintaining a sleek, polished finish that complements the motorcycle s vintage charm. Its robust construction ensures durability, shielding internal components from dust, debris, and moisture, which is essential for preserving the longevity of the engine s timing system particularly the camshaft, crankshaft, and associated gears.

The design of the Triumph BSA timing cover is both utilitarian and distinctive, featuring a smooth, contoured surface that integrates seamlessly with the motorcycle s bodywork. The cover is secured with a set of precision-machined bolts, ensuring a tight, vibration-free fit that prevents any unwanted rattles or misalignments during operation. For enthusiasts who appreciate a touch of authenticity, the cover is often paired with matching Triumph BSA badging or decals, enhancing the motorcycle s period-correct appearance. Whether restoring a classic TR25W to its former glory or maintaining a well-loved vintage machine, this timing cover is a testament to Triumph s engineering legacy, offering a perfect blend of performance, reliability, and timeless design. Its compatibility with the B25, B44, and B50 models further underscores its versatility, making it an indispensable part for any owner seeking to preserve or elevate the mechanical and aesthetic integrity of their BSA Triumph.

### **Pros and Cons of Buying a Triumph BSA 70-9395 TR25W Timing Cover (B25, B44, B50)**

1. **Compatibility with Classic Triumph Engines** The BSA 70-9395 timing cover is designed specifically for Triumph TR25W models (including variants like the B25, B44, and B50) and their BSA-derived engines. This ensures a perfect fit without modifications.

2. **Authentic Restoration Parts** If you are restoring or maintaining a vintage Triumph, this timing cover is a genuine replacement part, preserving the vehicle s original integrity.

3. **Durability and Longevity** BSA and Triumph engines from this era were built to last, and high-quality timing covers like this one contribute to long-term reliability.

4. **Easier Maintenance** A properly fitted timing cover simplifies engine maintenance, including belt or chain adjustments, water pump replacement, and alternator access.

5. **Aesthetic Value** For enthusiasts, using original or period-correct parts enhances the car s historical accuracy and appeal.

6. **Reduced Risk of Leaks** A well-sealed timing cover prevents coolant or oil leaks, which can be common in older engines if components wear out.

7. **Aftermarket Support** While not as common as modern parts, there is still a niche market for vintage Triumph/BSA components, making sourcing replacements easier than for rare models.

1. **Limited Availability** Vintage automotive parts, especially for specific Triumph models, can be difficult to find. You may need to search through specialty dealers, auctions, or online classifieds.

2. **Higher Cost Relative to Modern Parts** Due to rarity and production history, this timing cover may cost more than contemporary alternatives, especially if sourced from a reputable seller.

3. **Potential for Counterfeit or Mismatched Parts** Without careful sourcing, there is a risk of purchasing a knockoff or a part that does not fit perfectly, leading to installation issues.

4. **Specialized Knowledge Required** Installing a timing cover on a vintage engine may require mechanical expertise, especially if the engine has been modified or is in poor condition.

5. **Long Lead Times** Even if available, shipping times may be longer than for mass-produced parts, delaying repairs or restorations.

6. **Compatibility Concerns with Modified Engines** If the engine has been heavily modified (e.g., forced induction, custom crankshafts), the stock timing cover may not align properly with modern components.

7. **Maintenance Challenges** Older engines often require more frequent upkeep, and a timing cover alone may not address broader issues like worn belts, seals, or alignment problems.

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### **Conclusion**

The Triumph BSA 70-9395 timing cover is an excellent choice if you are restoring or maintaining an original TR25W (B25, B44, or B50) and prioritize authenticity, durability, and long-term reliability. However, its rarity and potential cost make it less ideal for casual buyers or those working on non-vintage projects. If you are committed to preserving the car s heritage, the investment is justified. For budget-conscious or non-purist owners, modern alternatives (if available) may be more practical.

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### **Recommendation**

- **Buy if:** You own or are restoring a Triumph TR25W (B25/B44/B50) and want an authentic, high-quality replacement part. Ensure you source it from a trusted vintage auto parts dealer to avoid counterfeits.

- **Avoid if:** You are working on a modified engine, need a quick or cheap fix, or are unsure about installation complexity. In such cases, consult a specialist mechanic before purchasing.

- **Alternatives to Consider:** If the part is unavailable, explore aftermarket vintage replacements (e.g., from companies like **Classic Parts Unlimited** or **Triumph Specialists**) or check for used examples in good condition. Always verify fitment before buying.

For the best experience, pair this purchase with a full engine inspection to ensure the timing cover will integrate smoothly with the rest of the components.

Details:

TRIUMPH TR25W BSA B25 B44 B50. 3/4 KICK START HOLE DIAMETER. Rays Brit bits and more .:: Listings By Rage biz. TIMING SIDE COVER PART # 70-9395 NO CRACKS GOOD THREADS, ONE WELD REPAIR.

part #: 709395 prices

• $49.99-$79.99

specifications cyclevintagee:

• for models: B25, B50
• for makes: Triumph
• brand: Triumph Bsa
• mpn: 70-9395
• part type: Timing Cover

seller cyclevintagee:

• city: Peck, Idaho
• rating: 100.0%
• # reviews: 7443

general cyclevintagee:

• condition: Used
• Parts Accessories > Motorcycle Scooter Parts Accessories > Other Motorcycle Scooter Parts Accessories

offer cyclevintagee:

• availability: In Stock
• started: February 1, 2026
• sold: 0
• options: Ship-to-home
• quantity: 1

shipping cyclevintagee:

• transit: 4-8 Days
• service: USPS Priority Mail Medium Flat Rate Box
• type: Calculated
• class: Expedited
• carrier: USPS
• cost: $22.95

returns cyclevintagee:

• policy: No Returns

payments cyclevintagee:

• other
• credit card: Mastercard
• wallet: Google-pay

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