MERCEDES 103-030-00-60 Connecting Rod Bearing Set Benz Eng.

( Manufacturer Part Number: 103-030-00-60 ), ( Type: Eng. Connecting Rod Bearing Set ), ( Items Included: As Pictured ), ( Quantity: Set Of 6 Bearings ; 12 Pcs ), ( Universal Fitment: No ), ( Compatibility: Mercedes-benz M103 Eng. 6cyl ), ( California Prop 65 Warning: This Product Contains A Chemical Known To The State Of California To Cause Cancer And Reproductive Harm. )

Review MERCEDES benz Eng. Connecting Rod Bearing Set And fits 300SE 300SEL

The **Mercedes-Benz 103-030-00-60 connecting rod bearing set** is a precision-engineered aftermarket component meticulously designed to restore peak performance and longevity to the iconic **M116 3.0-liter inline-six engine** found in the legendary **W116 300 SE and 300 SEL** models from the late 1960s through the early 1980s. This high-quality bearing set is crafted from **lead-indium tin bronze**, a material renowned for its exceptional wear resistance, thermal stability, and load-bearing capacity, ensuring smooth operation even under the most demanding driving conditions. Each bearing is **precision-machined to OEM specifications**, guaranteeing an exact fit within the engine s crankshaft journals and connecting rod caps, eliminating any risk of clearance issues or premature wear. The **103-030-00-60 set** includes all necessary components for a complete rebuild, featuring **six main bearings** (for the crankshaft) and **six connecting rod bearings**, along with **sealing strips** to prevent oil leakage a critical feature for maintaining engine integrity over time. Ideal for both **restoration projects** and **performance upgrades**, this bearing set is compatible with both **fuel-injected (300 SE 2.8/3.0)** and **carbureted (300 SEL 3.0)** variants of the M116 engine, making it a versatile choice for enthusiasts seeking reliability without compromising on authenticity. Whether restoring a classic to its original glory or enhancing an already modified engine, this bearing set delivers the durability and precision required to keep the heart of the W116 beating strong for generations to come.

### Pros and Cons of buying a Mercedes-Benz 103-030-00-60 Connecting Rod Bearing Set for a 300SE/300SEL (M116 Engine)

1. **OEM Quality** This is a genuine Mercedes-Benz part, meaning it meets the manufacturer s exact specifications for fit, performance, and durability. OEM components are designed to match the original tolerances, reducing the risk of premature wear or failure.

2. **Reliability** The M116 engine (installed in the 300SE/300SEL from 1971 1980) is a robust but aging design. High-quality bearings like this one help prevent catastrophic engine failure, especially if the engine has high mileage or signs of wear (knocking, oil consumption, or compression loss).

3. **Compatibility** This part is specifically engineered for the M116 engine, ensuring proper fitment without modification. It s a direct replacement for the stock bearings, which may degrade over time due to oil breakdown or lack of maintenance.

4. **Performance Stability** Worn connecting rod bearings can lead to excessive play, which increases stress on the crankshaft and pistons. Replacing them can restore smooth operation, reduce noise, and improve engine longevity.

5. **Preventative Maintenance** If you re performing a major overhaul (e.g., replacing pistons, rings, or the crankshaft), installing new bearings is a cost-effective way to ensure the engine remains in good condition for years to come.

6. **Ease of Installation** Since it s an OEM part, it should be straightforward to install, assuming you have the necessary tools and mechanical experience. Many aftermarket bearing sets require additional machining or adjustments, which this one does not.

7. **Resale Value Protection** For classic Mercedes-Benz enthusiasts, maintaining original or high-quality aftermarket parts can preserve the vehicle s value, especially if it s kept in running condition.

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1. **Cost** Genuine Mercedes-Benz parts, especially for older models, can be expensive. The 103-030-00-60 bearing set may cost significantly more than aftermarket alternatives, which could be just as reliable for less money.

2. **Availability and Lead Times** OEM parts for vintage Mercedes-Benz engines can sometimes be difficult to source, especially if the dealer or distributor has limited stock. You may need to order from a specialty supplier, which could take time.

3. **Labor Intensity** Replacing connecting rod bearings typically requires a full engine teardown, including removing the crankshaft, pistons, and cylinder head. This is a labor-intensive job that may not be feasible for DIYers without significant mechanical experience or access to proper tools (e.g., a crankshaft puller, bearing press, and alignment tools).

4. **Potential for Overkill** If the engine is otherwise in excellent condition with no signs of severe wear (e.g., cracked pistons, scored cylinders, or a bent crankshaft), replacing just the bearings may not be necessary. In such cases, the cost may not justify the effort unless you re planning a full rebuild.

5. **Alternative Options** Aftermarket bearing sets from reputable manufacturers (e.g., Fel-Pro, Moroso, or Kelsey-Hayes) can offer comparable quality at a lower price. Some enthusiasts prefer aftermarket parts for classic cars because they are often more readily available and may include additional benefits like improved oil flow or corrosion resistance.

6. **Risk of Contamination** If the engine is not thoroughly cleaned during the rebuild, old debris or metal shavings could contaminate the new bearings, leading to premature failure. This requires meticulous cleaning of all surfaces and components.

7. **Long-Term Storage Concerns** If you purchase the part but don t install it immediately, you ll need to ensure it remains in good condition (e.g., stored in a dry, dust-free environment to prevent corrosion or damage).

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The Mercedes-Benz 103-030-00-60 connecting rod bearing set is an excellent choice if you prioritize OEM quality, reliability, and long-term engine health for your 300SE/300SEL. It is particularly justified if the engine exhibits symptoms of bearing wear (e.g., knocking, oil consumption, or compression loss) or if you re undertaking a comprehensive rebuild. The cost and labor requirements are significant, but the peace of mind and potential to extend the engine s life make it a worthwhile investment for serious enthusiasts.

However, if you re on a tighter budget or the engine is otherwise in good condition, a high-quality aftermarket bearing set could be a more practical alternative. Additionally, if you lack the mechanical expertise or tools to perform the installation, hiring a professional mechanic may be necessary, which will further increase the overall cost.

- You are performing a full engine rebuild or addressing known bearing wear.

- You value OEM quality and are willing to invest in long-term reliability.

- You have the mechanical skills or access to a trusted mechanic for installation.

- You re looking to save money without sacrificing quality (e.g., Fel-Pro or Moroso sets).

- The engine is in good condition and you re only replacing bearings as a precautionary measure.

- You re unsure about the extent of the engine s wear and want to evaluate other components first.

- Pair the bearing replacement with other critical components (e.g., pistons, rings, or a crankshaft inspection) to maximize the rebuild s effectiveness.

- Source the part from a reputable supplier to avoid counterfeit or low-quality fakes.

- If DIY installation is not feasible, consult a specialist in classic Mercedes-Benz engines for guidance.

Details:

These parts are NOS which is New Part - Old Stock, They may have some minor blemishes and / or discoloration from long-term storage. Connecting Rod Bearing Set 103-030-00-60 For 300SE 300SEL - Mercedes-Benz. Everyone pays the price for this. Please verify with your local dealer before purchasing.

All costs have to be included in the delivered price. This has no negative effect on the parts or their performance. Part numbers are from the actual packaging and may not have a make/ model reference. This is not acceptable.

Part Template Mercedes-Benz Eng.

part #: 1030300060 price

• $326.95

specifications pistonrinro:

• for models: 300se, 300sel
• for makes: Mercedes
• mpn: 103-030-00-60
• type: Eng. Connecting Rod Bearing Set
• items included: As Pictured
• quantity: Set Of 6 Bearings ; 12 Pcs
• universal fitment: No
• compatibility: Mercedes-benz M103 Eng. 6cyl
• california prop 65 warning: This Product Contains A Chemical Known To The State Of California To Cause Cancer And Reproductive Harm.

general pistonrinro:

• condition: New other see details
• Car Truck Parts Accessories > Engines Engine Parts > Connecting Rods Parts

payments pistonrinro:

• credit card: Diners-club
• wallet: Paypal
• other

shipping pistonrinro:

• transit: 7-10 Days
• carrier: USPS
• class: Standard, Expedited
• service: USPS Ground Advantage, USPS Priority Mail
• cost: $8.10
• type: Calculated

returns pistonrinro:

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

offer pistonrinro:

• started: February 4, 2026
• quantity: 1
• sold: 0
• availability: In Stock
• options: Ship-to-home

seller pistonrinro:

• # reviews: 1791
• rating: 99.9%
• city: Bakersfield, California

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