Service parts for the L1066H
Grouped by system, with how many of each the parts manual calls for.
Air intake
1 requiredFuel system
1 requiredOil system
1 requiredBelts
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.
Maintenance & consumables
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Air Filter Element | 24-25002 | eBay | ||
| Fuel filter | Change primary fuel filter element at 50 hours, then check every 2 weeks. | — | 14 hr | ||
| Fuel filter | Filter Element | RE509032 | Amazon eBay $32.99 KuduParts $16.00 FridayParts $18.50 | ||
| Oil filter | Oil Filter | 24-09501 | Amazon eBay $68.22 | ||
| Battery | Check electrolyte level in batteries at 50 hours, then check every 2 weeks. | — | 14 hr | ||
| Belt | Drive Belt, L1066H Late Production and M1066H all | R123308 | eBay FridayParts $42.99 | ||
| Coolant | Check cooling system at 500 hours/yearly, then check every 2 weeks. | — | 14 hr | ||
| Coolant filter | Check cooling water level at 50 hours, then check every 2 weeks. | — | 14 hr | ||
| Fuel | Check fuel injection pump at 2000 hours, then check every 2 weeks. | — | 14 hr | ||
| Oil | Change engine oil and lube oil filters at 50 hours, then check every 2 weeks. | — | 14 hr | ||
| Spark plug | Check & adjust valve clearance at 2000 hours, then check every 2 weeks. | — | 14 hr |
Service specifications
1| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Torque | Raw water pump shaft nut | 75 | lbs-ft | Tighten shaft nut; continue turning castle nut to align next slot with hole in shaft for cotter installation |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Common questions
What oil filter fits the Northern Lights L1066H?
The Northern Lights L1066H uses oil filter part number 24-09501.
What fuel filter fits the Northern Lights L1066H?
The Northern Lights L1066H uses fuel filter part number RE509032.
Which air filter part number does the Northern Lights L1066H take?
The Northern Lights L1066H uses air filter part number 24-25002.
Troubleshooting
5Symptoms & remedies
| Symptom | Remedy |
|---|---|
| Temperature above 205°F (97°C) | Shut off the engine immediately. Use the Trouble Shooting Guide to isolate the cause of the overheat. Allow the engine to cool and then remove the cap slowly, using protective clothing. |
| Temperature above 200°F (94°C) | Watch the temperature gauge regularly and turn off the unit if the temperature rises above 200°F (94°C). Repeat the troubleshooting process. |
| Low oil pressure | Check the engine crankcase oil level. If the oil level is low, fill with recommended lubricating oil and restart. Watch the oil pressure gauge carefully and shut off the engine if it does not show a normal reading after a few seconds of operation. |
| Engine overheating | Shut down the engine and investigate the cause of overheating. Do not exceed 800 RPM when shifting marine gear to avoid damaging the reverse gear. |
| Maximum rated RPMs exceeded at full throttle | If you cannot reach your maximum rated RPMs at full throttle, either your propeller is too large or bottom growth is slowing the boat. Ensure proper propeller usage. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Parts
33| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 11-11043 | Gasket | 1 | Gasket | Amazon eBay $6.95 |
| 11-31615 | Gasket | 1 | Gasket | Amazon eBay |
| 24-09501 | Oil Filter | 1 | Oil filter | Amazon eBay $68.22 |
| 24-21000 | Air Filter | 1 | Air filter | Amazon eBay |
| 24-25002 | Air Filter Element | 1 | Air filter | eBay |
| 25-15704 | Impeller | 1 | Impeller | eBay |
| 25-19521 | Oil Seal | 1 | Seal | eBay |
| 25-19522 | Raw Water Pump Assembly (Includes all keys) | 1 | Pump | eBay $117.77 |
| 25-19526 | Mechanical Seal | 1 | Seal | eBay |
| H144094 | Voltage Regulator | 1 | Avr | eBay |
| R116516 | Engine Cylinder Head Gasket | 1 | Gasket | eBay $43.99 FridayParts $43.15 |
| R123308 | Drive Belt, L1066H Late Production and M1066H all | 1 | Belt | eBay FridayParts $42.99 |
| R123457 | Drive Belt LP-MP668T-H (with turbo, formerly #R123464) | 1 | Belt | Amazon eBay $34.95 |
| R504882 | Gasket, Rocker Arm Cover Mounting | 1 | Gasket | eBay $80.11 |
| RE167207 | Sensor | 1 | Sensor | eBay $20.24 FridayParts $34.13 |
| RE44574 | Seal | 1 | Seal | Amazon eBay $39.63 |
| RE504836 | OIL FILTER | 1 | Oil filter | Amazon eBay $44.99 NAPA $28.76 FridayParts $20.99 |
| RE505515 | Seal Kit (formerly #RE59810) | 1 | Seal | eBay $23.68 FridayParts $22.89 |
| RE509032 | Filter Element | 1 | Fuel filter | Amazon eBay $32.99 KuduParts $16.00 FridayParts $18.50 |
| RE509036 | Fuel Filter | 1 | Fuel filter | Amazon eBay $26.00 FridayParts $32.99 |
| RE5090362 | Fuel filter | Fuel filter | eBay | |
| RE516336 | Fuel Temperature Sensor | 1 | Sensor | eBay FridayParts $18.50 |
| RE517230 | Fuel Pump | 1 | Pump | eBay FridayParts $34.50 |
| RE519144 | Speed Sensor | 2 | Sensor | eBay FridayParts $19.00 |
| RE519730 | Fuel Injector | 1 | Injector | eBay $119.89 SinoCMP $199.00 |
| RE520930 | Sensor | 1 | Sensor | eBay FridayParts $32.00 SinoCMP $65.00 |
| RE52722 | Temperature Sensor | 1 | Sensor | eBay FridayParts $11.99 |
| RE61812 | Air Temperature Sensor | 1 | Sensor | eBay FridayParts $39.90 |
| 20-29601-1 | Element, Intake Aftercooler | 1 | Service part / kit | eBay |
| 21-10000 | Zinc Plug | 2 | Service part / kit | eBay |
| 21-10010 | Zinc Anode | 1 | Service part / kit | Amazon eBay NAPA $58.23 |
| 24-20015 | Crankcase Breather Filter, Left hand | 1 | Service part / kit | eBay |
| OL2-4 | LUBRICATION Break-in oil | 1 | Service part / kit | Amazon eBay $19.95 |
Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.
Available documents
Engine spec — L1066 curves (Northern Lights)Engine spec — L1066 specsParts manual — P1066 (Northern Lights)Parts manual — filter chart guide (Northern Lights)
This page was generated from the 4 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.