KING CR4451AM Connecting Rod Bearing Set 4B2740 010

( Brand: King ), ( Manufacturer Part Number: CR4451AM ), ( Part Type: Bearing Rod ), ( Ipn: 4b2740 ), ( Location: Jb062h Bag 1 2, Jb063a Bag2 1 )

Review KING Connecting Rod Bearing Set 010 Volvo fits 1968–1994

The **King CR4451AM Connecting Rod Bearing Set** is a precision-engineered aftermarket solution specifically designed to restore peak performance and longevity to the **Volvo 4B2740** inline-six engine, spanning model years from **1968 through 1994**. This high-quality bearing set is meticulously crafted to meet or exceed OEM specifications, ensuring seamless compatibility with the engine s critical connecting rod assembly. Engineered from **high-grade, heat-treated steel**, these bearings feature a **thin-walled, split-shell design** that delivers optimal oil retention and load-bearing capacity, reducing friction and minimizing wear on the crankshaft journals. The **CR4451AM** designation indicates a **full floating shell configuration**, where the upper and lower halves are independently mounted, allowing for even pressure distribution and accommodating minor crankshaft taper or wear critical for maintaining smooth operation and preventing catastrophic failure. This bearing set is particularly well-suited for applications where engines have experienced significant mileage, modifications, or signs of wear, such as excessive oil consumption, knocking, or visible scoring on the crankshaft. The **AM** variant often signifies an **aluminum-backed shell** option, which enhances corrosion resistance and reduces the risk of seizing, especially in high-stress or high-temperature environments. Whether installed during a routine overhaul or as part of a performance upgrade, the King CR4451AM set provides a reliable, long-lasting solution that helps preserve the structural integrity of the Volvo 4B2740 s drivetrain, ensuring reliable power delivery and extended engine life. Built to withstand the demands of both daily driving and occasional spirited use, this bearing set is a trusted choice for mechanics and enthusiasts seeking to maintain the legendary durability of this iconic Volvo engine.

### **Pros and Cons of buying a King CR4451AM Connecting Rod Bearing Set (010) for 1968 1994 Volvo 4B27/40 Engine**

1. **OEM Compatibility** The King CR4451AM is designed as a direct replacement for the original Volvo 4B27/40 engine bearings, ensuring proper fit and function without modifications.

2. **High-Quality Materials** King bearings are made from high-grade steel with a precision-machined surface, reducing wear and improving engine longevity compared to aftermarket knockoffs.

3. **Reliability** King is a well-established brand known for durability, especially in older engines where bearing failure is a common issue.

4. **Easy Installation** The bearing set comes pre-packed and labeled for straightforward installation, reducing the risk of incorrect assembly.

5. **Performance Benefits** Properly fitted bearings reduce friction, improving engine efficiency and potentially extending the life of the crankshaft and rod journals.

6. **Widely Available** As a popular bearing set for Volvo s 4-cylinder engines, it is relatively easy to source, even from specialty automotive suppliers.

7. **Cost-Effective for a Critical Component** While not the cheapest option, it offers a balance between affordability and reliability, avoiding the risk of cheaper bearings failing prematurely.

1. **Higher Upfront Cost** Compared to some generic or budget aftermarket bearing sets, King bearings are more expensive, which may be a concern for DIYers on a tight budget.

2. **Limited Availability in Some Regions** Depending on location, finding King bearings may require ordering from specialty suppliers rather than a local auto parts store.

3. **Requires Proper Installation** Even with a direct-fit bearing set, improper installation (e.g., incorrect torque, misalignment, or contamination) can negate benefits and potentially cause damage.

4. **Not a "Performance Upgrade"** These are replacement bearings, not high-performance or reinforced options. If you re looking for increased power or endurance beyond stock specs, you may need a different set.

5. **Potential Overkill for Mild Use** If the engine is lightly used (e.g., occasional driving), the extra cost may not be justified unless there are existing signs of wear (knocking, oil consumption, or metal debris).

---

### **Conclusion**

The **King CR4451AM connecting rod bearing set** is a **reliable, high-quality replacement** for the Volvo 4B27/40 engine, offering a strong balance between compatibility, durability, and ease of installation. It is particularly well-suited for:

- **Engines showing signs of bearing wear** (e.g., knocking, oil leaks, or excessive play).

- **Owners who prioritize longevity and trust in brand reputation** over the lowest cost.

- **DIYers who are confident in their mechanical skills** to install it correctly.

However, if the engine is in good condition and used infrequently, the cost may not be justified. In such cases, a **budget-friendly OEM or aftermarket set** (from a reputable brand like **Fel-Pro, Moroso, or a Volvo-specific supplier**) could be a more economical alternative **provided the engine has no existing bearing issues**.

---

### **Recommendation**

You have **visible signs of bearing wear** (e.g., oil in the crankcase breather, knocking noises, or metal particles in the oil).

You want **peace of mind** from a well-known brand with a proven track record.

You re **rebuilding or overhauling the engine** and want to future-proof it with quality components.

The engine is **running smoothly with no symptoms** of bearing failure.

You re on a **tight budget** and can find a **high-quality generic set** (e.g., **Fel-Pro 3000 series**) that fits the same specs.

You re **not comfortable with engine disassembly** in that case, consult a **trusted mechanic** to verify if replacement is necessary.

**Final Verdict:** For most **1968 1994 Volvo 4B27/40 engines with known bearing issues**, the **King CR4451AM is a solid, reliable choice**. If unsure, **inspect the old bearings** if they show significant wear (grooves, pitting, or discoloration), replacement is warranted. If they appear fine, delay replacement unless symptoms persist.

Details:

The quoted shipping prices are within the 48 states only. This listing is for: King Connecting Rod Bearing Set CR4451AM 010 Part no: 4B2740 Fits: 1968-1994 Volvo, application for reference only.

part #: cr4451am prices

• $14.69-$71.99

specifications pistonrinro:

• for makes: Volvo
• for years: 1968-1994
• brand: King
• mpn: Cr4451am
• part type: Bearing Rod
• ipn: 4b2740
• location: Jb062h Bag 1 2, Jb063a Bag2 1

payments pistonrinro:

• other
• wallet: Apple-pay
• credit card: Diners-club

general pistonrinro:

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

offer pistonrinro:

• options: Ship-to-home
• sold: 0
• best offers: True
• quantity: 1
• started: February 3, 2026
• availability: In Stock

shipping pistonrinro:

• cost: $8.99
• type: Fixed
• service: Standard
• transit: 3-8 Days
• class: Standard

returns pistonrinro:

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

seller pistonrinro:

• city: Ontario, California
• # reviews: 32086
• rating: 99.8%

King CR4451AM Is Similar To:

• K-10 Toledo Nos 1935 36 Ford King Bolt Set K10 L619 (26% similar) Please do your research, consult with a sales rep. Please look closely at the pictures and read the. Shipping times will vary depending on country. Loopiest fun stuff, cool parts and great service since 1999 . Get our free. On this item...(October 4th, 2016)
• King Engine Bearings Cr807hpnstdx Chevy Ls1 Ls6 Ls3 Size Stdx Performance Rod Bearing Set (33.1% similar) Unused, ready to use. Excellent condition...(December 17th, 2023)
• King Engine Bearings Cr804hpn Cr 804hpn Rod Bearing (37.4% similar) Excellent condition. Unused, ready to use...(August 25th, 2024)
• King Racing 2045 Products Rod End Alum Lh 10 32 (34.7% similar) From front axles and bird cages to Jacobs ladders torque tubes, everything in between, King has you covered...(September 6th, 2024)
• King-moss 824-055 Mg Midget Triumph Spitfire Connecting Rod Bearing Set 10 Thousandths Oversize (47.9% similar) Here is a nos set of 10 over rod bearings for 1500 midget or spitfire.brand new just an open box...(September 19th, 2024)
• Multibranded 4conrod-cr222sv-std Bmw 2.0l N20 B20 King Big End Connecting Rod Bearings And 4 Conrods Petrol Cr222sv (35.3% similar) Compatibility. Engine size: 2.0 petrol. The part fails or becomes defective due to the vehicle being involved in a collision. Failure is attributed to abuse, misuse, or alterations. BMW 2.0L N20 B20 King big end connecting rod bearings 4 Conrad's petrol CR222SV. Kings Conrad big end bearings 4PCS, ...(September 24th, 2024)
• King Bearings 611500526152 Cr 811si Std Series Rod Fits Buick Pontiac (34% similar) Specs sold in quantity set bearing undersized standard construction Teri-metal narrowed no material bi-metal, silicon aluminum grooved yes dowel pin hole mfg. Unique secure bond adhesion process for superior stability between the top and intermediate layers. Mains are 1/2 grooved for un compromised ...(October 14th, 2024)
• King Bearings 611500530883 Cr 803xpn Std Connecting Rod Bearing Set Sbc (50.3% similar) They are sold as a set. The X001 option will give .001 extra oil clearance. Std option entails - rod bearing for small block Chevy, 2.00 journal. Specs sold in quantity set bearing undersized standard construction Teri-metal mfg. Headquarters. Mains and rods are narrowed for large-radius crankshafts...(October 26th, 2024)
• King Engine Bearings Cr807xpnc010 Cr 807xpnc 010 Connecting Rod Bearing Xp 0.010 Inch Undersize (45.5% similar) Unused, ready to use. Excellent condition...(November 23rd, 2024)
• Parode 11-8952 Connecting Rod For Thermo King Tk486v Diesel Engine (36.2% similar) Shipping method. Of pieces: 1 piece. Buyer pays return shipping. Application: Thermos King TK486V diesel engine. Warranty: 1 year. Part name: connecting rod. 11-8952 TK11-8952...(December 20th, 2024)
• King Bearings 611500530838 Hp Series Small Block Fits Chevy Connecting Rod Bearings Std (41.3% similar) 2.000 rod journal size. Part # CR803HPN-STD condition new brand King bearings sold set details info hp series small block Chevy connecting rod bearings feature a bi-metal aluminum silicon construction. Sold as a set. Greater rod bearing height improves bearing-to-bore contact/heat transfer and ...(January 28th, 2025)