ANCHOR SX-21DN Rear Automatic Transmission Mount Bc

( Brand: Anchor ), ( Manufacturer Part Number: SX-21DN ), ( Type: Automatic Transmission Mount ), ( Placement On Vehicle: Transmission Transmission Hard Parts ), ( Manufacturer Warranty: 1 Year ), ( Item Length: 5.120 ), ( Item Height: 3.380 ), ( Item Width: 4.170 ), ( Ipn: C738 63-42 ), ( Compatible Model: Cutlass Supreme ), ( Compatible Year: 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 1976 ), ( Core Charge: Free No Core Charge ), ( Position: Rear ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Anchor Automatic Transmission Mount )

Review ANCHOR Rear Automatic Transmission Mount Oldsmobile Bc fits CUTLASS 1973–1988

The **Anchor SX-21DN Rear Automatic Transmission Mount** is a meticulously engineered, high-performance replacement part designed specifically for the 1973 through 1988 Oldsmobile Cutlass B/C series, ensuring optimal stability, reduced transmission vibration, and enhanced drivability in vehicles equipped with automatic transmissions. Crafted from durable, high-grade polyurethane foam encased in a reinforced rubber shell, this mount is built to withstand the rigors of daily driving while maintaining a firm yet flexible grip on the transmission housing. Its robust construction minimizes unwanted movement and harsh rattles, which are common in older vehicles where stock mounts degrade over time due to age, heat, and constant stress from acceleration, braking, and road imperfections. The SX-21DN features a precise fitment tailored to the Cutlass s unique transmission tunnel and firewall interface, eliminating the need for excessive modification or compromise in installation. Whether your vehicle is used for daily commuting, weekend cruising, or restoration projects, this mount delivers a noticeable improvement in transmission alignment, reducing the transfer of vibrations through the cabin and enhancing overall ride comfort. Engineered to last, the Anchor SX-21DN is a reliable upgrade that restores factory-like support while accommodating modern driving demands, making it an essential component for maintaining the integrity of your transmission system and preserving the classic performance of your Oldsmobile Cutlass.

### Pros and Cons of Buying an Anchor SX-21DN Rear Automatic Transmission Mount for a 1973 1988 Oldsmobile Cutlass B/C

1. **Compatibility and Fitment** The Anchor SX-21DN is specifically designed for the rear automatic transmission mounts on the 1973 1988 Oldsmobile Cutlass B/C series. This ensures a proper fit without modifications, reducing the risk of misalignment or premature wear.

2. **Durability and Quality** Anchor is a well-known manufacturer of automotive parts, particularly for transmission mounts. Their components are built to withstand the stresses of daily driving, reducing the likelihood of failure over time.

3. **Prevents Transmission Rattle and Vibration** A worn or missing transmission mount can cause excessive movement, leading to rattling noises, vibration, and potential damage to the transmission or drivetrain components. Replacing it with a new mount eliminates these issues.

4. **Simplified Installation** Since the part is designed for this specific application, installation should be straightforward for someone with basic mechanical skills. Most users can replace it without professional help, saving labor costs.

5. **Long-Term Reliability** A properly installed transmission mount should last the lifespan of the vehicle, provided it is not subjected to extreme abuse or improper installation.

6. **Cost-Effective Solution** Compared to the potential cost of transmission damage caused by a failing mount, replacing it is a relatively inexpensive preventive measure.

---

1. **Limited Availability** While Anchor parts are widely available, finding the exact SX-21DN mount for this application may require checking specialty auto parts stores, online marketplaces, or direct ordering from the manufacturer. Availability could be an issue in some regions.

2. **Potential for Counterfeit Parts** Since this is an older vehicle part, there is a risk of purchasing a counterfeit or low-quality replica. Always verify the seller s reputation and check for authenticity markings.

3. **Additional Wear Check Required** While replacing the mount is a good fix, it s wise to inspect other drivetrain components (such as the transmission pan bolts, yoke, or driveshaft) for signs of wear or damage. If other parts are failing, they may need replacement simultaneously.

4. **Installation Challenges for Inexperienced DIYers** Although the part is straightforward, improper installation (e.g., overtightening bolts or misalignment) could lead to premature failure or damage to the transmission housing. Those unfamiliar with transmission work may need to seek professional help.

5. **Cost Compared to Used Parts** While new mounts are durable, some buyers may prefer salvaging a used mount from a junkyard if they find one in good condition. However, this carries the risk of hidden damage or incompatibility.

6. **Potential for Other Underlying Issues** If the transmission itself is failing or the vehicle has other drivetrain problems (e.g., a worn-out torque converter or fluid issues), replacing just the mount may not fully resolve drivetrain noise or performance problems.

---

### **Conclusion and Recommendation**

The **Anchor SX-21DN rear automatic transmission mount** is a **reliable and cost-effective solution** for eliminating rattling and vibration in a 1973 1988 Oldsmobile Cutlass B/C. Its **direct compatibility, durability, and ease of installation** make it a strong choice for owners experiencing transmission mount failure. However, buyers should **verify the part s authenticity**, ensure proper installation, and **check for related drivetrain issues** to avoid recurring problems.

- **Buy the Anchor SX-21DN** if you are experiencing transmission mount-related noise or vibration and want a **long-term, high-quality fix**.

- **Purchase from a reputable seller** (e.g., RockAuto, Summit Racing, or a trusted local parts store) to avoid counterfeit parts.

- **Inspect other drivetrain components** (e.g., transmission pan bolts, yoke, driveshaft) during installation to prevent future issues.

- **Consider professional installation** if you are unsure about handling transmission work yourself.

- **If budget is a concern**, compare the cost of the new mount against salvaging a used one from a junkyard though this carries higher risk.

For most owners, the **Anchor SX-21DN is the best choice** due to its **proven reliability and compatibility**, making it a worthwhile investment in maintaining the vehicle s drivetrain health.

Details:

Anchor Rear Automatic Transmission Mount for 1973 1988 Oldsmobile Cutlass bc: Status: In Stock.

part #: sx21dn prices

• $22.31-$26.20

specifications engimou:

• for models: Cutlass
• for makes: Oldsmobile
• for years: 1973-1988
• brand: Anchor
• mpn: Sx-21dn
• type: Automatic Transmission Mount
• placement on vehicle: Transmission Transmission Hard Parts
• manufacturer warranty: 1 Year
• item length: 5.120
• item height: 3.380
• item width: 4.170
• ipn: C738 63-42
• compatible model: Cutlass Supreme
• compatible year: 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 1976
• core charge: Free No Core Charge
• position: Rear
• fitment type: Direct Replacement
• bundle description: 1 Pc Genuine Anchor Automatic Transmission Mount

shipping engimou:

• type: Fixed
• class: Standard, Expedited
• transit: 4-7 Days
• cost: $0.00
• service: Standard, Expedited

payments engimou:

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

general engimou:

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

offer engimou:

• sold: 0
• quantity: 4
• started: April 18, 2026
• options: Ship-to-home
• availability: In Stock

returns engimou:

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

seller engimou:

• city: Indianapolis, Indiana
• # reviews: 646631
• rating: 99.6%

Anchor SX-21DN 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 (40.7% similar) XA0 100 original fast shipping best offers...(July 14th, 2018)
• 2108 Anchor Manual Trans Mount (38.6% 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 (41.4% 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 (37.2% 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 (38.5% 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 (41.7% 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 (43.9% similar) Se Alba empanel...(March 9th, 2018)
• 2167 Anchor Manual Trans Mount (38.6% similar) ...(August 28th, 2017)
• 2172 Anchor Manual Trans Mount (38.6% 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 (34.8% 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)