Service parts for the CH640
Grouped by system, with how many of each the parts manual calls for.
Air intake
1 requiredFuel system
1 requiredBelts
1 required25 455 08-SBeltfind
Cooling system
1 required25 357 12-SCoolantfind
Electrical
1 requiredIgnition
1 requiredPrices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
Specifications
Ratings spec sheet not in our library yet — see the documents below.
Filters & service parts
model family| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | 25 083 01-S | 250 hr | KuduParts $19.00 | ||
| Fuel filter | Kohler 25 761 39-S | 25 761 39-S | buy | ||
| Oil filter | 12 050 01-S | 200 hr | Amazon $30.38 eBay KuduParts $32.00 | ||
| Battery | Kohler 25 357 14-S | 25 357 14-S | buy | ||
| Belt | Kohler 25 455 08-S | 25 455 08-S | buy | ||
| Coolant | Kohler 25 357 12-S | 25 357 12-S | buy | ||
| Coolant filter | — | ||||
| Oil | Kohler 25 357 11-S | 25 357 11-S | buy | ||
| Spark plug | 0.76 mm (0.030 in.) gap | 12 132 02-S | 200 hr | buy |
Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number.
Common questions
What oil filter does the Kohler CH640 use?
The Kohler CH640 uses oil filter part number 12 050 01-S.
What fuel filter fits the Kohler CH640?
The Kohler CH640 uses fuel filter part number 25 761 39-S.
Which air filter part number does the Kohler CH640 take?
The Kohler CH640 uses air filter part number 25 083 01-S.
Parts
41model family| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 24 584 03 | Ignition Module | Ignition module | FridayParts $20.49 | |
| 24 584 11 | Ignition Module (1 11/16 in. High) | Ignition module | buy | |
| 24 584 15-S | Ignition Module (2 1/16 in. High) | Ignition module | FridayParts $20.49 | |
| 24 584 36-S | Ignition Module (2 1/16 in. High) | Ignition module | FridayParts $20.49 | |
| 24 590 29 | Oil Fill | 1 | Oil fill | buy |
| 24 590 43 | Dipstick | Oil filter | buy | |
| 24 690 06 | Oil Pick-Up Tube (Style B) | 1 | Hose | buy |
| 24690-06 | Brake Spring | 1 | Brake spring | buy |
| 2469006 | Blower Housing | 1 | Cleaner | buy |
| 25 455 20-S | Hose Removal Tool (Dual Size/End) (Components of EFI Service Kit) | 1 | Hose | buy |
| 24 584 09 | Tester part for SAM (Part No. 24 584 09) | Service part / kit | buy | |
| 24 584 10 | Tester part for SAM (Part No. 24 584 10) | Service part / kit | buy | |
| 24 584 12 | Brown tester lead with black band or terminal to short brown module lead. | Service part / kit | buy | |
| 24 584 18 | Black tester lead to green or black module ground with eyelet terminal | Service part / kit | buy | |
| 24 584 19 | Brown tester lead with black band or terminal to short brown module lead | Service part / kit | buy | |
| 24 584 27 | Pink tester lead to short yellow or pink module lead | Service part / kit | buy | |
| 24 584 30 | Tester part for SAM (Part No. 24 584 30) | Service part / kit | buy | |
| 24 584 31 | Tester part for SAM (Part No. 24 584 31) | Service part / kit | buy | |
| 24 584 32 | Tester part for SAM (Part No. 24 584 32) | Service part / kit | buy | |
| 24 584 33 | Tester part for SAM (Part No. 24 584 33) | Service part / kit | buy | |
| 24 584 34 | Tester part for SAM (Part No. 24 584 34) | Service part / kit | buy | |
| 24 584 38 | Tester part for SAM (Part No. 24 584 19) | Service part / kit | buy | |
| 24 584 39 | Tester part for SAM (Part No. 24 584 18 or 24 584 27) | Service part / kit | buy | |
| 24 761 01-S | EFI Service Kit | Service part / kit | buy | |
| 25 455 01-S | Ignition System Tester | 1 | Service part / kit | buy |
| 25 455 11-S | Alcohol Content Tester | 1 | Service part / kit | buy |
| 25 455 12-S | Valve Guide Reamer (K and M Series) (Components of Valve Guide Reamer) | 1 | Service part / kit | buy |
| 25 761 05-S | Adapter 12 mm x 14 mm (Required for leakdown test on XT-6 engines) | 1 | Service part / kit | buy |
| 25 761 06-S | Oil Pressure Test Kit | 1 | Service part / kit | buy |
| 25 761 20-S | Rectifier-Regulator Tester (120 volt current) (Components of 25 761 20-S and 25 761 41-S) | 1 | Service part / kit | buy |
| 25 761 23-S | Electronic Fuel Injection (EFI) Diagnostic Software | Service part / kit | buy | |
| 25 761 38-S | Design Technology Inc. DTI-019 | Service part / kit | buy | |
| 25 761 39-S | Dealer Tool Kit (Components of 25 761 39-S) | 1 | Service part / kit | buy |
| 25 761 40-S | Spark Advance Module (SAM) Tester | 1 | Service part / kit | buy |
| 25 761 41-S | Rectifier-Regulator Tester (240 volt current) (Components of 25 761 20-S and 25 761 41-S) | 1 | Service part / kit | buy |
| 25 761 42-S | Dealer Tool Kit (International) | Service part / kit | buy | |
| 28 761 01-S | Triad/OHC Timing Tool Set | Service part / kit | buy | |
| 52 455 04-S | Offset Wrench (K and M Series) | Service part / kit | buy | |
| DTI-721-01 | Digital Vacuum/Pressure Tester (Individual component available: Rubber Adapter Plug) | Service part / kit | Amazon eBay | |
| DTI-721-10 | Rubber Adapter Plug | Service part / kit | Amazon eBay | |
| DTI-K830 | For hand reaming using Kohler 25 455 12-S reamer. | Service part / kit | Amazon eBay |
Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.
Available documents
Engine spec — E-2196 Command Pro 19-27 116609 (Kohler)Engine spec — REHLKO Gasoline Full line (Kohler)Reference — Gasoline Full line (Kohler)Owner's manual — 2459001 b 808 (Kohler)Owner's manual — 24 590 29 EN (Kohler)Owner's manual — 24 590 43 EN (Kohler)Owner's manual — 24 590 48 EN (Kohler)Service manual — 24 690 06 (Kohler)Service manual — 24 590 54 FRC (Kohler)Service manual — 24 690 06 EN (Kohler)Service manual — 24 690 30 EN (Kohler)Service manual — 24 690 35 ESS (Kohler)Service manual — CH Twin (Kohler)Service manual — Kohler PA-CH740-3362 Engine Service Manual (Kohler)Service manual — sm 24 690 06 (Kohler)