SUZUKI 16400-45020 Oil Pump Stainer 16331-45000 16520-45010

( Manufacturer Part Number: 16400-45020 ), ( Part Type: Oil Pump ), ( Machine Type: Street Motorcycle ), ( Color: Silver ), ( Material: Aluminum, Steel ), ( Vintage Part: Yes ), ( Compatible Year: 1979, 1978, 1977 ), ( Country Of Origin: Japan )

Review SUZUKI Oil Pump Stainer Oem fits GS750 1977–1979

The **Suzuki 16400-45020 Oil Pump Strainer (compatible with models 16331-45000 and 16520-45010)** from the 1977 1979 GS750 series is a meticulously engineered component designed to ensure the longevity and peak performance of your classic Suzuki motorcycle s lubrication system. This essential part plays a critical role in maintaining clean oil flow by filtering out contaminants such as metal shavings, dirt, and debris that could otherwise circulate through the engine, leading to premature wear on critical components like bearings, pistons, and crankshafts. Crafted from high-quality materials, including durable metal and precision-machined filters, this oil pump strainer is built to withstand the rigorous demands of high-revving, high-performance engines while resisting corrosion and wear over extended periods of use. Its unique design integrates seamlessly with the GS750 s oil pump assembly, ensuring an optimal balance between filtration efficiency and minimal pressure drop, which is vital for sustaining proper lubrication under varying riding conditions. Whether you re restoring a vintage GS750 to its original glory or upgrading an existing setup for enhanced reliability, this strainer is an indispensable upgrade that aligns with Suzuki s engineering standards of the era. Its compatibility with both the **16331-45000** and **16520-45010** oil pump variants ensures broad applicability, making it a versatile choice for enthusiasts and mechanics alike. By installing this strainer, you not only protect your engine from harmful particulates but also contribute to smoother operation, reduced friction, and extended component life key factors in preserving the performance and collectible value of your beloved GS750.

### Pros and Cons of Buying a 1977-1979 Suzuki GS750 Oil Pump Strainer (Parts: 16400-45020, 16331-45000, 16520-45010)

1. **Cost-Effective Repair** These parts are relatively inexpensive compared to labor costs, making them a practical solution for restoring or maintaining a classic GS750. Prices are often lower than OEM replacements, especially if sourced from aftermarket suppliers or used markets.

2. **Common Availability** Suzuki s GS750 is a well-documented and widely owned motorcycle, so these components are frequently available from parts dealers, eBay, or specialty motorcycle shops. This reduces the risk of long wait times for replacement parts.

3. **Simple Installation** The oil pump strainer and related components are straightforward to replace, requiring basic mechanical skills and standard tools. Many owners and mechanics can handle the job without professional assistance, saving on labor costs.

4. **Prevents Engine Damage** A failing oil pump strainer can lead to contaminated oil flow, reducing lubrication efficiency and potentially causing engine wear or failure. Replacing it ensures proper oil filtration and protects the engine s longevity.

5. **Compatibility with Modifications** If you ve modified your GS750 (e.g., upgraded engine, different oil filters, or performance parts), these strainers are often interchangeable with aftermarket alternatives that may offer improved flow or durability.

6. **Long-Term Reliability** Once replaced, these parts are designed to last the lifespan of the oil change cycle (typically 2,000 4,000 miles for classic bikes). This makes them a low-maintenance solution compared to other wear-prone components like timing belts or seals.

7. **DIY-Friendly** The GS750 s design allows for easy disassembly and reassembly, making it accessible for hobbyists who enjoy working on their own bikes. This can be both rewarding and cost-saving.

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1. **Wear and Tear Over Time** Like all mechanical parts, these strainers degrade with age, oil contamination, or improper maintenance. If the original strainer was neglected, the replacement may not last as long as expected, requiring future replacements.

2. **Potential for Counterfeit Parts** Some aftermarket or eBay listings may sell knockoff or low-quality replicas that don t meet OEM specifications. This can lead to premature failure or reduced performance. Always verify the seller s reputation and part authenticity.

3. **Oil Filter Compatibility Issues** If you ve upgraded to a different oil filter (e.g., a high-flow aftermarket filter), the stock strainer may not work optimally with the new filter s flow rate. This could cause oil starvation or pressure issues, especially under high RPMs.

4. **Rust and Corrosion Risk** Older GS750s may have rusted or seized components in the oil pump area, making installation difficult or requiring additional cleaning or lubrication. This can add time and effort to the repair.

5. **Limited Lifespan in Harsh Conditions** If the bike is ridden aggressively, exposed to extreme temperatures, or operated with poor-quality oil, the strainer may clog or wear out faster than expected. Regular oil changes and filter replacements are essential to mitigate this.

6. **Mismatched Part Numbers** The GS750 s oil pump system includes multiple related parts (e.g., the strainer, pump housing, and gaskets). Mixing OEM and aftermarket components (e.g., using a new strainer with worn gaskets) can lead to leaks or improper sealing.

7. **Learning Curve for First-Timers** While the repair is manageable, first-time DIYers might struggle with disassembly, alignment, or reassembly, risking damage to the engine or pump. Consulting a repair guide or experienced mechanic is advisable for beginners.

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Buying and replacing the oil pump strainer (16400-45020, 16331-45000, 16520-45010) for a 1977 1979 Suzuki GS750 is a **practical and cost-effective solution** for maintaining engine health. The parts are widely available, easy to install, and prevent costly engine damage from poor lubrication. However, potential buyers should be mindful of part quality, compatibility with other modifications, and the bike s overall condition to ensure a successful repair.

For **owners who prioritize reliability and longevity**, investing in genuine or high-quality aftermarket parts and performing regular maintenance (oil changes, filter replacements) will maximize the strainer s lifespan. If the bike is heavily modified or neglected, additional checks (e.g., pump housing condition, gasket replacement) may be necessary.

For **enthusiasts comfortable with basic mechanics**, this is a straightforward project that enhances the bike s performance and resale value. Those less experienced should seek guidance or professional help to avoid mistakes.

- **Purchase from reputable sources** (e.g., official Suzuki dealers, trusted aftermarket suppliers like DID, or well-reviewed eBay sellers) to avoid counterfeit parts.

- **Check for complementary parts** (gaskets, seals, or oil pump housing) if the existing components show signs of wear.

- **Follow a detailed repair guide** (e.g., from *Haynes Manual* or Suzuki s service manual) to ensure proper installation and alignment.

- **Consider upgrading the oil filter** if you ve modified the bike, as this can improve overall oil flow and strainer performance.

- **Budget for future maintenance** while the strainer itself is cheap, related components (like gaskets) may need replacement during the process.

**Final Verdict:** This is a **worthwhile repair** for most GS750 owners, especially those who ride regularly or plan to keep the bike long-term. Prioritize quality parts and thorough maintenance to avoid recurring issues.

Details:

Please research fitment prior to buying. More From This Motorcycle. Left and right is from the riding position perspective. These items are used will show some dirt, scratches, dings, etc.

Mileage 17,512 miles, Removed from a 1978 Suzuki GS750ec.

part #: 1640045020 prices

• $16.99-$25.00

specifications cyclevintagee:

• for models: Gs750
• for makes: Suzuki
• for years: 1977-1979
• mpn: 16400-45020
• part type: Oil Pump
• machine type: Street Motorcycle
• color: Silver
• material: Aluminum, Steel
• vintage part: Yes
• compatible year: 1979, 1978, 1977
• country of origin: Japan

offer cyclevintagee:

• started: March 11, 2026
• availability: In Stock
• options: Ship-to-home
• sold: 0
• quantity: 1
• best offers: True

returns cyclevintagee:

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

shipping cyclevintagee:

• type: Calculated
• cost: $10.15
• service: USPS Ground Advantage, USPS Priority Mail, UPS Ground
• class: Standard, Expedited
• carrier: USPS, UPS
• transit: 3-7 Days

payments cyclevintagee:

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

general cyclevintagee:

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

seller cyclevintagee:

• # reviews: 690
• city: Fox Lake, Illinois
• rating: 99.7%

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