Mack RM Headlight Bulb Size
Mack RM headlight bulb sizes include H6024, H4651, and H5001 for high beam applications, along with H6024, H4656, and H5006 for low beam configurations, with each bulb size corresponding to specific vehicle specifications. The replacement chart covers 1981 through 1993 production years and details bulb size specifications aligned with vehicle manufacturing periods.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
High Beam Headlight
| Years | Bulb Type | Shop |
|---|---|---|
| 1981-1993 | H6024 (With 2 Round Headlamps) | Check Price |
| H4651 (With 4 Rectangular Headlamps) | Check Price | |
| H5001 (With 4 Round Headlamps) | Check Price |
Low Beam Headlight
| Years | Bulb Type | Shop |
|---|---|---|
| 1993 | H6024 (With 2 Round Headlamps) | Check Price |
| H4656 (With 4 Rectangular Headlamps) | Check Price | |
| H5006 (With 4 Round Headlamps) | Check Price | |
| 1992 | H6024 (With 2 Round Headlamps) | Check Price |
| H4652 (With 4 Rectangular Headlamps) | Check Price | |
| H5006 (With 4 Round Headlamps) | Check Price | |
| 1989-1991 | H6024 (With 2 Round Headlamps) | Check Price |
| H4656 (With 4 Rectangular Headlamps) | Check Price | |
| H5006 (With 4 Round Headlamps) | Check Price | |
| 1988 | H6024 (With 2 Round Headlamps) | Check Price |
| H4652 (With 4 Rectangular Headlamps) | Check Price | |
| H5006 (With 4 Round Headlamps) | Check Price | |
| 1987 | H6024 (With 2 Round Headlamps) | Check Price |
| H4656 (With 4 Rectangular Headlamps) | Check Price | |
| H5006 (With 4 Round Headlamps) | Check Price | |
| 1986 | H6024 (With 2 Round Headlamps) | Check Price |
| H4652 (With 4 Rectangular Headlamps) | Check Price | |
| H5006 (With 4 Round Headlamps) | Check Price | |
| 1985 | H6024 (With 2 Round Headlamps) | Check Price |
| H4656 (With 4 Rectangular Headlamps) | Check Price | |
| H5006 (With 4 Round Headlamps) | Check Price | |
| 1982-1984 | H6024 (With 2 Round Headlamps) | Check Price |
| H4652 (With 4 Rectangular Headlamps) | Check Price | |
| H5006 (With 4 Round Headlamps) | Check Price | |
| 1981 | H6024 (With 2 Round Headlamps) | Check Price |
| H4656 (With 4 Rectangular Headlamps) | Check Price | |
| H5006 (With 4 Round Headlamps) | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). 7-inch round sealed beam unit. Not a replaceable bulb — the entire unit is replaced. 12V. | H6024 | Check Price |
| ANSI standard (US & Canada). 4x6-inch rectangular sealed beam unit. Not a replaceable bulb — the entire unit is replaced. 12V. | H4651 | Check Price |
| ANSI standard (US & Canada). 4-inch square sealed beam unit. Not a replaceable bulb — the entire unit is replaced. 12V. | H5001 | Check Price |
| ANSI standard (US & Canada). 4x6-inch rectangular sealed beam unit. Not a replaceable bulb — the entire unit is replaced. 12V. | H4656 | Check Price |
| ANSI standard (US & Canada). 5.75-inch round sealed beam unit. Not a replaceable bulb — the entire unit is replaced. 12V. | H5006 | Check Price |
| ANSI standard (US & Canada). 4x6-inch rectangular sealed beam unit, variant of H4651. Not a replaceable bulb — the entire unit is replaced. 12V. | H4652 | Check Price |