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BCBC MR-801 Engine Rocker Arm
| Brand | BCBC MR-801 |
|---|---|
| Material | Stamped steel |
| Rocker Arm Type | Non-roller |
| Rocker Arm Finish | Anti-rust |
| Rocker Arm Material | Stamped steel |
| Slot Width | 0.611 |
| Slot Width | 16.0 |
| Grade Type | Standard replacement |
| Self Aligning | Yes |
| Shims Included | No |
| Mounting Type | Shaft |
| Product line | Stock |
| Fits | American Motors, International, and Jeep · 108 vehicles |
Standard replacement. Built for stock valvetrain service with a self-aligning shaft-mounted design.
Stamped steel construction. Uses an anti-rust finish for added surface protection during rebuild work.
Made in the USA. Melling supplies rocker arms for domestic and import engine applications.
Cross-references Four Seasons 44074, 3223888 and R-405 for the same application. See all 6.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Engine Rocker Arm Overview
The Melling MR-801 is a standard replacement engine rocker arm built for stock applications that use inverted pivots or a shaft-mounted design. It is made in the USA and uses stamped steel construction with an anti-rust finish for dependable service in rebuild work.
Compatible with a wide range of American Motors and Jeep applications, including Jeep CJ5, Jeep CJ7, and American Motors Concord, this rocker arm is listed for stock-style engine setups. The MR-801 part number is also useful when cross-checking replacement needs during an engine rebuild.
Key Features
- Stamped steel rocker arm with a non-roller design
- Anti-rust finish for added surface protection
- Self-aligning design for stock-style valvetrain setups
- Shaft mounting type for inverted pivot applications
- Standard replacement grade for rebuild service
- Made in the USA
Fitment Details
Fits 1978-1982 American Motors Concord, N/A; 1980-1982 American Motors Eagle, N/A; 1979-1982 American Motors Spirit, N/A; 1974-1982 Jeep Cherokee, N/A; 1974-1982 Jeep CJ5, N/A; 1976-1982 Jeep CJ7, N/A; 1974-1982 Jeep DJ5, N/A; 1974-1982 Jeep J10, N/A; 1981-1982 Jeep Scrambler, N/A; 1980-1982 Jeep Wagoneer, N/A; 1978-1980 American Motors AMX, N/A; 1975-1980 American Motors Pacer, N/A; 1974-1978 American Motors Gremlin, N/A; 1974-1978 American Motors Matador, N/A; 1974-1977 American Motors Hornet, N/A; 1976 Jeep J20, N/A; 1974 Jeep J20, N/A; 1974-1975 Jeep CJ6, N/A; 1974 American Motors Javelin, N/A; 1974 International 100, N/A; 1974 International 200, N/A; 1974 International MHC1310, N/A; 1972-1974 International MS1210, N/A; 1972-1974 International Scout II, N/A; 1972-1973 International 1010, N/A; 1972-1973 International 1110, N/A; 1972-1973 International 1210, N/A; 1972-1973 International 1310, N/A; 1972 International M1100, N/A; 1972 International M1200, N/A; 1972 International M800 Post Office, N/A.
What This Part Helps Address
- Worn rocker arm contact surfaces in stock valvetrain assemblies
- Noise or irregular operation from aged stamped components
- Restoration needs for inverted pivot engine designs
- Rebuild service where a standard replacement rocker arm is required
Installation Notes
Use this rocker arm only on applications listed with inverted pivots or the specified serial-number break for International models. Melling recommends replacing rocker arms and related components during an engine rebuild to support proper valvetrain service. Verify shaft mounting style, self-aligning requirements, and slot width before installation.
Quality Assurance
Melling manufactures this rocker arm in the USA and supplies rocker arms for domestic and import engine applications. The MR-801 is built to standard replacement expectations using stamped steel construction and controlled manufacturing processes. Part number MR-801 is also referenced by Four Seasons 44074 and interchange listings including 3223888, R-405, R-874A, and RA-9601 for the same application.
| Year | Make | Model | Liters | Cylinders | Notes |
|---|---|---|---|---|---|
| 1982 | American Motors | Concord | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1982 | American Motors | Eagle | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1982 | American Motors | Spirit | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1982 | Jeep | Cherokee | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1982 | Jeep | CJ5 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1982 | Jeep | CJ7 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1982 | Jeep | DJ5 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1982 | Jeep | J10 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1982 | Jeep | Scrambler | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1982 | Jeep | Wagoneer | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1981 | American Motors | Concord | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1981 | American Motors | Eagle | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1981 | American Motors | Spirit | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1981 | Jeep | Cherokee | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1981 | Jeep | CJ5 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1981 | Jeep | CJ7 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1981 | Jeep | DJ5 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1981 | Jeep | J10 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1981 | Jeep | Scrambler | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1981 | Jeep | Wagoneer | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1980 | American Motors | AMX | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1980 | American Motors | Concord | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1980 | American Motors | Eagle | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1980 | American Motors | Pacer | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1980 | American Motors | Spirit | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1980 | Jeep | Cherokee | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1980 | Jeep | CJ5 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1980 | Jeep | CJ7 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1980 | Jeep | DJ5 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1980 | Jeep | J10 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1980 | Jeep | Wagoneer | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1979 | American Motors | AMX | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1979 | American Motors | Concord | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1979 | American Motors | Pacer | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1979 | American Motors | Spirit | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1979 | Jeep | Cherokee | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1979 | Jeep | CJ5 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1979 | Jeep | CJ7 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1979 | Jeep | DJ5 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1979 | Jeep | J10 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1978 | American Motors | AMX | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1978 | American Motors | Concord | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1978 | American Motors | Gremlin | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1978 | American Motors | Matador | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1978 | American Motors | Pacer | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1978 | Jeep | Cherokee | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1978 | Jeep | CJ5 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1978 | Jeep | CJ7 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1978 | Jeep | DJ5 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1978 | Jeep | J10 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1977 | American Motors | Gremlin | 3.8L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1977 | American Motors | Hornet | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1977 | American Motors | Matador | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1977 | American Motors | Pacer | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1977 | Jeep | Cherokee | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1977 | Jeep | CJ5 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1977 | Jeep | CJ7 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1977 | Jeep | DJ5 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1977 | Jeep | J10 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1976 | American Motors | Gremlin | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1976 | American Motors | Hornet | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1976 | American Motors | Matador | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1976 | American Motors | Pacer | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1976 | Jeep | Cherokee | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1976 | Jeep | CJ5 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1976 | Jeep | CJ7 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1976 | Jeep | DJ5 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1976 | Jeep | J10 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1976 | Jeep | J20 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1975 | American Motors | Gremlin | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1975 | American Motors | Hornet | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1975 | American Motors | Matador | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1975 | American Motors | Pacer | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1975 | Jeep | Cherokee | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1975 | Jeep | CJ5 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1975 | Jeep | CJ6 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1975 | Jeep | DJ5 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1975 | Jeep | J10 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1974 | American Motors | Gremlin | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1974 | American Motors | Hornet | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1974 | American Motors | Javelin | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1974 | American Motors | Matador | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1974 | International | 100 | 4.2L | L6 | From Serial Number 502A07; Stock |
| 1974 | International | 200 | 4.2L | L6 | From Serial Number 502A07; Stock |
| 1974 | International | MHC1310 | 4.2L | L6 | From Serial Number 502A07; Stock |
| 1974 | International | MS1210 | 4.2L | L6 | From Serial Number 502A07; Stock |
| 1974 | International | Scout II | 4.2L | L6 | From Serial Number 502A07; Stock |
| 1974 | Jeep | Cherokee | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1974 | Jeep | CJ5 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1974 | Jeep | CJ6 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1974 | Jeep | DJ5 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1974 | Jeep | J10 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1974 | Jeep | J20 | 4.2L | L6 | Rocker Arms With Inverted Pivots; Stock |
| 1973 | International | 1010 | 4.2L | L6 | From Serial Number 502A07; Stock |
| 1973 | International | 1110 | 4.2L | L6 | From Serial Number 502A07; Stock |
| 1973 | International | 1210 | 4.2L | L6 | From Serial Number 502A07; Stock |
| 1973 | International | 1310 | 4.2L | L6 | From Serial Number 502A07; Stock |
| 1973 | International | MS1210 | 4.2L | L6 | From Serial Number 502A07; Stock |
| 1973 | International | Scout II | 4.2L | L6 | From Serial Number 502A07; Stock |
| 1972 | International | 1010 | 4.2L | L6 | From Serial Number 502A07; Stock |
| 1972 | International | 1110 | 4.2L | L6 | From Serial Number 502A07; Stock |
| 1972 | International | 1210 | 4.2L | L6 | From Serial Number 502A07; Stock |
| 1972 | International | 1310 | 4.2L | L6 | From Serial Number 502A07; Stock |
| 1972 | International | M1100 | 4.2L | L6 | From Serial Number 502A07; Stock |
| 1972 | International | M1200 | 4.2L | L6 | From Serial Number 502A07; Stock |
| 1972 | International | M800 Post Office | 4.2L | L6 | From Serial Number 502A07; Stock |
| 1972 | International | MS1210 | 4.2L | L6 | From Serial Number 502A07; Stock |
| 1972 | International | Scout II | 4.2L | L6 | From Serial Number 502A07; Stock |
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