Indian Coolant Fitting Rear 5145168

Genuine Indian Coolant Fitting Rear — OEM Part #5145168

Heat and friction are the biggest threats to a V-twin. The genuine Indian Coolant Fitting Rear (part #5145168) keeps oil and coolant moving the way Indian designed it on the Indian Scout 101, Scout Bobber and other Scout models.

The oil and cooling system protects bearings, cams and pistons from heat and wear. Indian builds both air/oil-cooled Thunderstroke engines and liquid-cooled PowerPlus, Scout and FTR engines, and each needs its own correct parts. This part is confirmed for 10 Indian models from 2025 to 2026. See the full fitment list below.

Indian Coolant Fitting Rear at a Glance

• OEM part number: 5145168
• Brand: Indian Motorcycle (genuine OEM part)
• Part type: Coolant Hose / Line
• Fits: Indian Scout models, 2025–2026
• Condition: New

Indian Models and Years This Coolant Fitting Rear Fits

Genuine Indian part #5145168 fits the models and years below. To be certain, match the part number to the factory parts diagram for your bike, or contact us with your VIN before ordering.

Indian Scout Fitment

Why Choose a Genuine Indian OEM Coolant Fitting Rear?

• Correct flow and pressure for the Indian engine
• Leak-free sealing with factory fittings and gaskets
• Helps extend engine and transmission life
• Avoids the fit problems of universal parts
• Made to the same specifications as the part installed at the factory, not an aftermarket copy
• Sold by Witchdoctors, an Indian Motorcycle OEM parts source with factory part numbers and diagrams for every listing

Every Indian, from the Chief and Chieftain to the Challenger, Scout and FTR, is engineered as a complete system. Genuine OEM parts keep your bike correct, reliable and easier to sell. Learn more in our Indian motorcycle parts guide.

Features and Materials

Key Features

• Genuine Indian Motorcycle OEM part #5145168
• Factory fittings, threads and mounting points
• Built for Indian V-twin operating temperatures
• Direct replacement with no modification

Materials and Construction

Indian oil and cooling parts use aluminum and steel housings, heat-resistant rubber and braided hose, filter media rated for hot engine oil, and corrosion-resistant radiators and seals on liquid-cooled models.

Common Reasons Riders Replace This Part

• Scheduled oil and filter changes
• Fixing oil or coolant leaks
• Replacing a worn pump, fan or cooler
• Bringing a stored Indian back into service

Signs Your Coolant Fitting Rear Needs Replacing

• Oil or coolant drips under the bike
• Low oil pressure or high temperature warning
• Engine running hotter than normal
• Cracked, swollen or seeping lines

Installation Tips

1. Let the engine cool and secure the bike upright on a lift or stand.
2. Drain oil or coolant as needed and catch it for proper disposal.
3. Install the new part with new gaskets, O-rings or crush washers.
4. Torque fittings and plugs to the Indian spec without over-tightening.
5. Refill with the specified fluid, run the engine and check level and leaks.

Not sure whether to do it yourself? Read when to seek professional help or DIY before you start.

Indian Parts Diagrams for This Part

Browse all Indian motorcycle parts diagrams to find part #5145168 for your model.

Related Indian OEM Parts

Doing the job right? These genuine Indian parts fit the same bikes and are often replaced at the same time:

• Indian Coolant Hose, Head Out (#5418812)
• Indian Coolant Hose Mount Strap (#5418746)
• Indian Coolant Hose, Bleed (#5418844)
• Indian Coolant Hose, Return (#5418954)
• Indian Coolant Hose, Bypass (#5418811)

Recommended Accessories and Maintenance Supplies

Pair your Coolant Fitting Rear with these parts and supplies:

• Indian oil change kits — Complete oil change kits for Indian models
• Indian motorcycle oil — Motorcycle oils for Indian V-twins
• Indian air, oil and fuel filters — OEM-style and performance filters
• Indian maintenance essentials — Filters, plugs, fluids and wear items
• Indian OEM parts diagrams — find every factory part for your model

Helpful Guides from the Witchdoctors Blog

• Why Use a high Quality Motorcycle Oil Filter?
• What Does JASO Rated Oil Mean and Why Does It Matter?
• How to Test Your UTV, Motorcycle or ATV Brake Fluid and Coolant: A 60-Second Safety Check
• How to Prepare Your Motorcycle for Winter Storage.

Frequently Asked Questions

What is the OEM part number for this Indian Coolant Fitting Rear?

The genuine Indian Motorcycle part number is 5145168. Use it to match this part to your factory parts diagram.

Which Indian models does part #5145168 fit?

It fits the Indian Scout 101 (2025–2026); Indian Scout Bobber (2025–2026); Indian Scout Classic (2025–2026); Indian Scout Sixty Bobber (2025–2026); Indian Scout Sixty Classic (2025–2026); Indian Sport Scout (2025–2026); Indian Sport Scout Sixty (2025–2026); Indian Super Scout (2025–2026); Indian Scout Bobber 125th Anniversary Edition (2026); Indian Sport Scout Rt (2026).

Is this a genuine Indian Motorcycle part?

Yes. This is a genuine Indian Motorcycle OEM part, the same part number used at the factory, not an aftermarket copy.

How do I make sure this fits my bike?

Match part #5145168 to the parts diagram for your model and year, or send us your VIN and we will confirm it for you.

What oil does my Indian use?

Indian specifies a 15W-60 motorcycle oil for many models. Always confirm the grade in your owner's manual and use a JASO MA-rated oil.

How often should I change my oil?

Follow the interval in your owner's manual, and change it at least once a year even with low miles.

Do I need new crush washers or O-rings?

Yes. Replace sealing washers and O-rings every time to prevent leaks.

Order Your Genuine Indian Coolant Fitting Rear Today

Ride with confidence on parts made for your bike. Order the genuine Indian Coolant Fitting Rear, OEM part #5145168, from Witchdoctors today and keep your Indian Scout 101, Scout Bobber and other Scout models running the way Indian designed it.

• How long will it take to receive my order?
• Shipping and return policy
• Questions about fitment? Contact us
• Shop all Indian OEM parts

Where to Ride Your Indian

Your Indian was built for the open road. These scenic routes are favorites with motorcycle riders. Check current road conditions, seasonal closures and park fees before you go.

• Hocking Hills Scenic Byway (SR 374) — Hocking Hills, Ohio: forested hills, caves and waterfalls
• M-119 Tunnel of Trees — Harbor Springs, Michigan: a narrow, wooded Lake Michigan shoreline road