BMW 84651MTHP Rocker Arm Shaft Spring

( Manufacturer Part Number: 84651MTHP ), ( Part Type: Spring Arm Shaft ), ( Manufacturer Warranty: 12 Month Warranty ), ( Notes: Rocker Shaft Spring ), ( Years: 1975 1976 1977 1978 ), ( Application: Bmw 530i Rocker Arm Shaft Spring ), ( Product Name 2: Engine Rocker Arm Shaft Spring ), ( Cs-sku: 400 )

Review BMW Genuine Rocker Arm Shaft Spring fits 530I 1975–1978

BMW 530i Rocker Arm Shaft Spring for 1976 and 1977 Models (Part Number: 84 65 1 MTHP)

The BMW 530i Rocker Arm Shaft Spring is an essential component of your BMW's engine system. This part, specifically designed for BMW 530i models from 1976 and 1977 (part number: 84 65 1 MTHP), is responsible for maintaining the proper tension and connection between the rocker arm and the pushrod.

This spring is manufactured using high-quality steel, ensuring the necessary strength and durability. Its design is specifically engineered to fit the BMW 530i models from the mentioned years, guaranteeing a perfect fit and optimal performance.

The BMW 530i Rocker Arm Shaft Spring is known for its resistance to wear and tear, ensuring that your engine continues to operate smoothly and efficiently. However, due to the high temperatures and constant motion, this part may eventually wear out and require replacement.

Symptoms of a worn-out rocker arm shaft spring may include rough idling, misfiring, or a loss of power during acceleration. Replacing the worn-out spring with a new one can help alleviate these issues and restore the engine's performance to its optimal level.

To install the new BMW 530i Rocker Arm Shaft Spring, you will need to remove the old one, along with other related components such as the valve cover and rocker arms. It is recommended to follow the instructions in your BMW's service manual or consult a professional mechanic to ensure a successful installation.

In conclusion, the BMW 530i Rocker Arm Shaft Spring is a crucial engine component for the 1976 and 1977 BMW 530i models. Its primary function is to maintain the proper tension and connection between the rocker arm and the pushrod, ensuring the engine runs smoothly and efficiently. When this part wears out, it may cause rough idling, misfiring, or a loss of power during acceleration. By replacing the worn-out spring with a new one, you can help restore the engine's performance and prolong its life.

Replacing the Rocker Arm Shaft Spring in a 1975-1978 BMW 530i: Pros, Cons, Conclusion, and Recommendation

The BMW 530i, produced between 1975 and 1978, is known for its classic design and performance. However, one component that may require replacement over time is the rocker arm shaft spring. In this article, we will discuss the pros and cons of replacing this part, followed by a conclusion and recommendation.

1. Improved engine performance: The rocker arm shaft spring plays a crucial role in the engine's valvetrain system. A worn-out spring can cause valves to not seal properly, leading to a loss of compression and power. Replacing the spring can help restore the engine's performance.

2. Reduced engine noise: A worn-out rocker arm shaft spring can cause noise due to valves bouncing or clattering against the rocker arms. Replacing the spring can help reduce or eliminate these noises.

3. Preventing further damage: A faulty rocker arm shaft spring can lead to more significant engine damage if left unattended. Replacing the spring can help prevent costly repairs down the line.

1. Cost: The cost of a new rocker arm shaft spring can vary depending on the source and availability. However, it is generally an affordable repair compared to other engine components.

2. Labor intensive: Replacing the rocker arm shaft spring is a labor-intensive process that requires removing the engine's valve cover, timing belt, and other components. This can add to the overall cost and time of the repair.

3. Rare availability: Finding a new OEM (Original Equipment Manufacturer) rocker arm shaft spring for a 1975-1978 BMW 530i can be challenging due to the vehicle's age. Aftermarket options may be available, but their quality and fitment may vary.

The decision to replace the rocker arm shaft spring in a 1975-1978 BMW 530i depends on various factors, including the vehicle's condition, usage, and personal preferences. While the repair can be labor-intensive and costly, the benefits of improved engine performance, reduced engine noise, and preventing further damage can outweigh the cons.

If you own a 1975-1978 BMW 530i and suspect that the rocker arm shaft spring is worn out, it is recommended to consult a professional mechanic for an inspection. They can help determine the condition of the spring and provide an accurate estimate for the repair. If the repair is within budget and the benefits outweigh the cons, it is generally a worthwhile investment for the longevity and performance of your classic BMW.

Details:

Parts Geek - For 1975-1978 BMW 530I Rocker Arm Shaft Spring Genuine 84651MTHP 1976 1977: Review Fitment Notes to Ensure Proper Fit condition: New Brand: Notes: 12 Month Warranty Vehicle.

part #: 84651mthp prices

• $11.09-$25.08

specifications rockeareng:

• for makes: Bmw
• for years: 1975-1978
• mpn: 84651mthp
• part type: Spring Arm Shaft
• manufacturer warranty: 12 Month Warranty
• notes: Rocker Shaft Spring
• years: 1975 1976 1977 1978
• application: Bmw 530i Rocker Arm Shaft Spring
• product name 2: Engine Rocker Arm Shaft Spring
• cs-sku: 400

seller rockeareng:

• city: Irvine, California
• # reviews: 329660
• rating: 98.8%

offer rockeareng:

• availability: In Stock
• options: Ship-to-home
• quantity: 1
• sold: 0
• started: April 22, 2026

payments rockeareng:

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

general rockeareng:

• Engines Engine Parts > Valvetrain Components > Rocker Arms Parts
• condition: New

shipping rockeareng:

• service: FedEx Ground / FedEx Home Delivery
• type: Fixed
• transit: 3-7 Days
• class: Standard
• cost: $0.00
• carrier: FedEx

returns rockeareng:

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

Bmw 84651MTHP Is Similar To:

• 11 12 1 738 607 Genuine Bmw New Valve Cover Nut Set Of (32.8% similar) 0i E53 bmw 528I E39 x3 E83 325XI E46 330CI 1992 325I E36 2000 323CI 1999 323I 325IS 525I E34 325CI z3 bmw 328I E36 330XI E46 m3 320I 328IS 2000 328CI z3 5 l6 E36 bmw 328I 2000 E46 1998 323I 1999 323IS z4 E85 330I 325I 530I E39 x5 z3 manufacturer genuine bmw part number 7 condition new ...(July 12th, 2018)
• 11 33 0 634 130 Bmw Rocker Arm Spacer Cylinder Engines Set Of (40% similar) I do ship worldwide. Bmw 2002 TII - 318I 320I 528I 528E 530I 630CSI 633CSI 635CSI 733I 735I rocker arm spacer. See my 4 shipping options for best service. Pair bmw - quality you can trust all my pictures are of the actual part buying in most cases and not a file photo. At that point you are not ...(July 10th, 2018)
• 11-33-1-264-519 Bmw Genuine Valve Cover Rocker Shaft Plug Oem (40% similar) All parts are oem unless specified aftermarket...(March 31st, 2018)
• 11 33 1 266 400 Oe Replacement Lot Of Bmw Rocker Arm Shaft End Plugs (39.4% similar) Lot of 4 bmw rocker arm shaft end plugs please verify comparability before purchase...(February 27th, 2018)
• 11-33-7-559-794 Bmw Genuine Rocker Arms (31.9% similar) Active hybrid 35I series. M40I series. 640I, 640I drive. Electrical parts are not returnable. Shipping carrier substitutions may be made at our determination in an attempt to reduce cost the customer. 3 series gt. Parts must be resalable and in the original packaging. 528I, 535I, 535XI. 528I, 528XI...(August 27th, 2018)
• 11-33-7-559-797 Bmw Mini Genuine Rocker Arms (30.5% similar) Without turbo. 640I, 640I drive. Parts must be resalable and in the original packaging. 528I, 535I, 535XI. Electrical parts are not returnable. 528I, 528XI. Shipping carrier substitutions may be made at our determination in an attempt to reduce cost the customer. Our bmw and mini parts team is here ...(July 2nd, 2018)
• 11-33-7-833-259 11337833259 Genuine Bmw New (21.8% similar) Brand new genuine bmw rocker arms for E46 M3, Z3, z3 m roadster coupe, E85 z4 coupe...(January 14th, 2018)
• 11331247773 Genuine Bmw New For Driver Left Rocker Arm Drag Lever (43.2% similar) If you live outside of the USA please research and verify it fits your vehicle before purchasing. Or for a quick response...(October 18th, 2018)
• 11331247774 Genuine Bmw For Passenger Right Rocker Arm Drag Lever (44.6% similar) If you live outside of the USA please research and verify it fits your vehicle before purchasing. Or for a quick response...(October 18th, 2018)
• 11331264677 Genuine Bmw For Engine Rocker Shaft End Plate Bracket (46% similar) Or for a quick response. Applications bmw 325E1 coupe,Steinem 325I1987-1988 SEDAN,CONVERTIBLE1989-1991 COUPE,SEDAN,CONVERTIBLE1992-1993 convertible chassis: E30 325IS1987-1991BMW 325IX1988-1991 capable 528E1982-1988 525I1989-1990BMW 325ES1986 if you live outside of the USA please research and verify...(October 18th, 2018)
• 11331280933 Bmw Oem Rocker Arm Clip Holder (39.7% similar) In good working condition. Price is for 3 clips...(April 17th, 2018)