COURSER Jacobsen LF135 / LF3400 / LF3407 / LF3800 / LF4677 / LF570 22-Inch × 7-Inch 11-Blade Cutting Unit Rebuild Kit – Complete 5-Head Set
COURSER Jacobsen LF Series 22-Inch × 7-Inch 11-Blade Rebuild Kit – Complete 5-Head Set
Fits compatible Jacobsen LF135, LF3400, LF3407, LF3800, LF4677 and LF570 cutting units using reel references 5002762 or 2810472. Includes 5 × AM5002762 reels, 5 × AM503460 13-hole bedknives, 10 × AM5002477 bearing-with-cup assemblies, 10 × AM3006030 seals, 5 × R311870 compression springs and 65 × AM101272 bedknife screws.

A BIG SAVINGS compared with purchasing the included components separately.
This complete COURSER rebuild kit contains the main cutting and service components required to overhaul five compatible Jacobsen fairway mower cutting heads fitted with 22-inch × 7-inch, 11-blade cutting units using reel references 5002762 or 2810472.
The kit supplies five cutting reels, five heavy-section bedknives, bearing assemblies, reel seals, compression springs and replacement bedknife screws for the complete five-head machine.
Kit includes
- 5 × AM5002762 — COURSER 22-inch × 7-inch, 11-blade cutting reels
- 5 × AM503460 — COURSER 22-inch, 13-hole heavy-section bedknives
- 10 × AM5002477 — bearing-with-cup assemblies, 2 per cutting head
- 10 × AM3006030 — reel seals, 2 per cutting head
- 5 × R311870 — compression springs, 1 per cutting head
- 65 × AM101272 — Jacobsen 1/4 × 1/2 BSW bedknife screws, 13 per cutting head
This is a complete five-head rebuild set, providing one reel, one bedknife, two bearing assemblies, two seals, one compression spring and thirteen replacement bedknife screws for each cutting unit.
The 11-blade reel and heavy-section bedknife combination provides a durable and practical cutting setup for routine fairway maintenance. Replacing the main cutting and reel-service components together helps restore smooth reel operation, correct reel-to-bedknife contact and consistent cutting performance across all five heads.
Fits Jacobsen models including
When fitted with compatible 22-inch × 7-inch cutting units using reel references 5002762 or 2810472:
- Jacobsen LF135
- Jacobsen LF3400
- Jacobsen LF3407
- Jacobsen LF3800
- Jacobsen LF4677
- Jacobsen LF570
The five-head quantity is suitable for compatible five-gang machines and Jacobsen LF4677 machines configured with five matching cutting heads.
Compatibility is determined by the cutting-unit configuration and existing component arrangement, rather than the traction-unit model alone.
Important compatibility information
Before ordering, confirm:
- The machine uses compatible 22-inch × 7-inch cutting units
- The existing reel matches reference 5002762 or 2810472
- The cutting unit uses an 11-blade reel configuration
- The AM503460 bedknife matches the existing 13-hole mounting pattern
- The machine has five compatible cutting heads
- The existing bearing, seal and spring arrangement matches the parts supplied
This kit does not suit 5-inch reel cutting units or machines fitted with a different number or style of cutting heads.
This kit rebuilds a complete set of five cutting heads.
COURSER Premium guaranteed products are replacement parts designed to fit and replace corresponding OEM parts. OEM names, trademarks and part numbers are used for identification and compatibility reference only.


