ANCHOR SX-B42V Front Left Engine Mount Jz 6.4L 6.6L

( Brand: Anchor ), ( Manufacturer Part Number: SX-B42V ), ( Type: Engine Mount ), ( Placement On Vehicle: Engine Cylinder Block ), ( Manufacturer Warranty: 1 Year ), ( Item Length: 6.880 ), ( Item Width: 5.560 ), ( Item Height: 3.690 ), ( Ipn: C431 23-34 ), ( Compatible Year: 1970 1969 1968 1967 1966 1965 ), ( Core Charge: Free No Core Charge ), ( Position: Front Left ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Anchor Engine Mount )

Review ANCHOR Front Left Engine Mount Pontiac 6.4l 6.6l Jz fits BONNEVILLE 1965–1970

The **Anchor SX-B42V Front Left Engine Mount** is a meticulously engineered, high-performance replacement part designed specifically for the iconic 1965 through 1970 Pontiac Bonneville models equipped with the legendary **6.4L (389 ci) and 6.6L (400 ci) "Judge Zero" (JZ) V8 engines**. Crafted from durable, heat-resistant **polyurethane rubber**, this mount is built to withstand the intense vibrations, torque, and thermal stress generated by these powerful, high-revving engines while maintaining precise alignment and structural integrity. Unlike generic aftermarket mounts, the SX-B42V is precision-molded to replicate the exact dimensions and mounting points of the original Pontiac component, ensuring a seamless fit with the Bonneville s front suspension and engine bay. Its reinforced design eliminates the flex and slop common in lower-quality replacements, providing a firmer, more stable foundation for the engine and transmission, which is critical for maintaining optimal drivetrain balance especially under heavy acceleration, towing, or high-performance driving conditions. The mount s robust construction also helps reduce engine noise and harshness, contributing to a more refined and controlled ride while preserving the Bonneville s classic muscle car character. Whether you re restoring a show-quality Bonneville, preparing your JZ-powered beast for track days, or simply seeking to eliminate the dreaded "engine float" on the highway, the Anchor SX-B42V is the ideal upgrade combining durability, precision engineering, and the reliability expected from a brand synonymous with automotive excellence.

### Pros and Cons of Buying an Anchor SX-B42V Front Left Engine Mount for a 1965 1970 Pontiac Bonneville (6.4L/6.6L JZ)

1. **Compatibility and Fitment** The Anchor SX-B42V is specifically designed for the 6.4L/6.6L Pontiac V8 engine bay, ensuring a proper fit without modifications. It is engineered to match the mounting points of the original engine supports, reducing the risk of misalignment or installation issues.

2. **Durability and Material Quality** Anchor is a well-regarded manufacturer known for producing high-quality rubber and polyurethane engine mounts. The SX-B42V appears to be constructed with reinforced rubber or polyurethane, which can withstand the weight and vibration of a heavy V8 engine like the J-series. This reduces the likelihood of premature failure compared to cheaper, aftermarket alternatives.

3. **Improved Engine Support** Over time, the original engine mounts on older Pontiacs can degrade due to age, heat, and constant stress. Replacing them with a new, properly rated mount can help prevent engine sag, excessive vibration, or even catastrophic failure (e.g., a mount tearing loose while driving). The SX-B42V is likely designed to provide better isolation and support than worn-out OEM parts.

4. **Compatibility with Modern Driving Conditions** If your Bonneville is driven frequently or on rough roads, the original mounts may not provide adequate support. A new mount like the SX-B42V can help maintain engine stability, reducing stress on other components like the transmission, exhaust, or suspension.

5. **Ease of Installation** Since this is a direct replacement part, installation should be straightforward for someone with basic mechanical experience. Most engine mounts require only the removal of bolts, the old mount, and the installation of the new one. No major disassembly of the engine bay is typically needed.

6. **Potential for Long-Term Reliability** High-quality mounts like those from Anchor are less likely to fail suddenly, which can be critical for safety. A well-supported engine is less likely to develop issues like oil leaks (from a shifting pan) or transmission problems (from excessive movement).

7. **Warranty and Customer Support** Anchor offers warranties on their products, providing some recourse if the mount fails prematurely. Their reputation for customer service is generally positive, which can be reassuring when purchasing a critical part.

---

1. **Cost Compared to OEM or Cheaper Alternatives** The Anchor SX-B42V is likely more expensive than an original equipment (OEM) mount or a no-name aftermarket part. For a classic car owner on a budget, this could be a significant investment, especially if multiple mounts need replacement. OEM mounts (if available) may be cheaper but could still be worn out or difficult to source.

2. **Potential Overkill for Lightly Used Vehicles** If your Bonneville is a weekend project car that rarely sees hard driving or rough roads, the original mounts might still function adequately for years. Replacing them prematurely could mean unnecessary expense without immediate benefits.

3. **Installation Challenges for DIYers** While the mount itself is relatively simple to replace, some older Pontiacs may have rusted or seized bolts in the engine bay. Removing these can be difficult without the right tools (e.g., penetrating oil, a breaker bar, or a torque wrench). If the mounts are stuck, professional installation may be required, adding to the cost.

4. **Limited Availability of Specific Parts** While Anchor is a reputable brand, their parts may not be as widely stocked as more common aftermarket brands. This could mean longer wait times or shipping delays, which might be inconvenient if you need the part urgently.

5. **Possible Over-Suspension (If Using Polyurethane)** Some engine mounts, particularly polyurethane ones, can be stiffer than rubber mounts. While this provides better support, it may also transmit more road noise and vibration into the cabin. If you prefer a softer ride, a rubber mount might be preferable, though Anchor s SX-B42V could be a hybrid design.

6. **Risk of Incorrect Mount Selection** It s crucial to ensure that the SX-B42V is the exact correct part for your specific engine configuration (e.g., 6.4L vs. 6.6L, carbureted vs. fuel-injected). Mixing up parts could lead to improper fitment or functionality. Always double-check the part number and application before purchasing.

7. **Potential for Misalignment During Installation** If the mount is not installed correctly (e.g., not aligned with the engine s natural position), it could cause issues like binding, excessive vibration, or even damage to adjacent components (e.g., the transmission or exhaust manifold). Careful attention to installation is required.

---

The Anchor SX-B42V front left engine mount is a **high-quality, reliable replacement** for the 1965 1970 Pontiac Bonneville s 6.4L/6.6L J-series engine. It addresses common issues with aging mounts, such as sagging, vibration, and potential failure, while offering durability and proper fitment. For owners who prioritize long-term reliability, safety, and peace of mind especially those who drive their Bonneville regularly or on rough roads the investment is justified.

However, if your vehicle is a static display or lightly used, the cost may not be necessary. In such cases, a thorough inspection of the existing mounts could determine whether replacement is urgent. For DIYers, the installation is manageable but may require patience, especially if rust or seized bolts are involved. Always verify the part s compatibility before purchasing to avoid errors.

- Your Bonneville is driven frequently or on rough roads.

- The original mounts are visibly worn, cracked, or sagging.

- You want a high-quality, long-lasting replacement with minimal risk of failure.

- You re comfortable with a slightly higher upfront cost for reliability.

- Your car is a collector s item with minimal use and no signs of mount failure.

- You re on a tight budget and can t afford multiple mounts or professional installation.

- You re unsure about the exact part number or application (always confirm compatibility).

For most owners who value their Bonneville s performance and longevity, the Anchor SX-B42V is a **strong, recommended choice**. Pair it with other high-quality mounts (e.g., from Anchor or similar brands) for balanced engine support. If in doubt, consult a mechanic familiar with Pontiac engines to assess the condition of your current mounts before committing to a replacement.

Details:

Anchor Front Left Engine Mount for 1965-1970 Pontiac Bonneville 6.4L 6.6L jz: Status: In Stock.

part #: sxb42v prices

• $19.60-$23.23

specifications engimou:

• for models: Bonneville
• for makes: Pontiac
• for years: 1965-1970
• brand: Anchor
• mpn: Sx-b42v
• type: Engine Mount
• placement on vehicle: Engine Cylinder Block
• manufacturer warranty: 1 Year
• item length: 6.880
• item width: 5.560
• item height: 3.690
• ipn: C431 23-34
• compatible year: 1970 1969 1968 1967 1966 1965
• core charge: Free No Core Charge
• position: Front Left
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine Anchor Engine Mount

general engimou:

• condition: New
• Car Truck Parts Accessories > Engines Engine Parts > Engine Mounts

shipping engimou:

• type: Fixed
• class: Standard, Expedited
• cost: $0.00
• service: Standard, Expedited
• transit: 5-7 Days

offer engimou:

• quantity: 10
• availability: In Stock
• started: May 24, 2026
• sold: 0
• options: Ship-to-home

returns engimou:

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

seller engimou:

• rating: 99.6%
• # reviews: 660708
• city: Indianapolis, Indiana

payments engimou:

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

Anchor SX-B42V Is Similar To:

• 1231120040 Unbranded Bracket Anchor Mount (19.2% similar) You are looking at one used right passenger side Anchor mount bracket only, as shown in the photos. 1MZFE engine automatic transmission, exterior color code: 209 black sand pearl. Fits only with part 2004 0IT is used but in good condition. MRW488 stock MW576 Hollander part is pulled out and ready ...(December 11th, 2017)
• 2107 Anchor Manual Trans Mount Qty (30.5% similar) XA0 100 original fast shipping best offers...(July 14th, 2018)
• 2108 Anchor Manual Trans Mount (28.1% similar) Manual trans mount fits GMC jimmy K1500 suburban K1500,K2500,K2500 subprime is for 1 - adjust qty as needed...(September 15th, 2017)
• 2125 Anchor Manual Trans Mount Fits Chevrolet Bel Air Em (40% similar) Brands: balk amp, car quest, car quest DEA products, VP engine and transmission mounts, Legree, mounter, pioneer inc. V8 gas naturally aspirated...(January 5th, 2019)
• 2150 Anchor Engine Mount Fits (38.9% similar) Brands: balk amp, car quest DEA products, VP engine and transmission mounts, mounter, Pb pioneer inc...(October 5th, 2017)
• 2156 Anchor New Mopar Motor Mount Set Cylinder Sets (28.1% similar) This motor mount lot, 2 sets, fits the following: 1957 ,1958,1959 dodge and Plymouth, all 6 cylinder these are slower movers for us, we decided to try special price. Super high quality older stock, made in USA. You are getting 2 sets...(June 5th, 2018)
• 2162 Anchor Manual Trans Mount Mt Em (31.7% similar) So forget the rest and try Best. You won't be disappointed. Our team of certified car quest counter pros are Best in the biz. This parts position is left upper, rear, right upper. Brands: auto zone muralist-Anchor, balk amp, car quest, car quest DEA products, VP engine and transmission mounts, ...(July 9th, 2018)
• 2163 Anchor Transmission Mount (28.1% similar) Se Alba empanel...(March 9th, 2018)
• 2167 Anchor Manual Trans Mount (28.1% similar) ...(August 28th, 2017)
• 2172 Anchor Manual Trans Mount (28.1% similar) Anchor supplied your vehicles manufacturer with the manual trans mount. L6 gas naturally aspirated, manual trans mount fits mercury comet Anchor price is for 1 - adjust qty as needed. Brands: balk amp, car quest DEA products, VP engine and transmission mounts, mounter, pioneer inc. This part fits ...(September 10th, 2017)
• 2204 Anchor Engine Mount Fits Pontiac Bonneville (60.6% similar) This parts position is front left, right. Brands: auto zone muralist-Anchor, muralist-West, balk amp, car quest, car quest DEA products, VP engine and transmission mounts, mounter, parts plus Anchor, West, pioneer inc. Engine mount Anchor 2204 fits pontiac bonneville this part fits vehicles made in ...(August 2nd, 2018)