Rinehart Racing 4″ Classic Replacement End Caps For Slip-On Mufflers
Signature Billet Style for Rinehart 4-Inch Exhaust Systems
Refresh the rear aesthetic of your V-Twin touring motorcycle with genuine Rinehart Racing 4″ Classic Replacement End Caps. Designed specifically for all standard 4-inch Rinehart Racing slip-on mufflers and full exhaust systems, these end caps deliver the iconic, clean-cut signature look that Rinehart is famous for across the V-Twin industry.
Precision CNC-machined from aircraft-grade billet aluminum, each Classic end cap features a sleek straight-cut design that showcases internal baffle craftsmanship while standing up to high exhaust heat, road grime, and weathering.
Technical Specifications & Product Details
| Feature / Metric | Product Specification | Rider Benefit |
|---|---|---|
| Brand / Manufacturer | Rinehart Racing (Made in USA) | Authentic factory fitment and premium American billet manufacturing quality |
| Compatibility Size | 4-Inch Outer Diameter (OD) Muffler Bodies | Direct bolt-on replacement for all standard 4″ Rinehart slip-on mufflers |
| Material Construction | CNC-Machined Aircraft-Grade Billet Aluminum | Resists heat distortion, corrosion, and structural degradation over time |
| Finish Options | High-Gloss Chrome or High-Temp Anodized Black | Allows easy restyling or replacement of faded/scratched original end caps |
| Included Hardware | Stainless Steel Mounting Bolts Included | Corrosion-resistant mounting hardware ensures a secure, vibration-proof fit |
Vehicle & Exhaust Compatibility Guide
Rinehart 4″ Classic End Caps (Part #350-0011 Chrome / #350-0012 Black) fit virtually all Harley-Davidson Touring and Softail models equipped with standard 4-inch diameter Rinehart slip-on mufflers or full exhaust systems:
### Compatible Exhaust Systems
- Rinehart 4″ Slip-On Mufflers: Harley-Davidson Touring (1995–2026)
- Rinehart 4″ DBX40 / DBX45 Slip-Ons: Standard 4-inch body models
- Rinehart 4″ Churchills / 4″ Full Systems: Floorboard-equipped Softail and Touring setups
Fitment Note: Designed specifically for 4.0-inch outer diameter muffler canisters. Will NOT fit Rinehart 3.5-inch or 4.5-inch MotoPro45/DBX45 muffler bodies. Sold individually or in pairs (check listing options before ordering).
Step-by-Step DIY Installation Guide
Replacing or swapping the end caps on your 4-inch Rinehart mufflers takes under 15 minutes per side using basic hand tools.
### Required Tools
- Hex key / Allen wrench set (5/32″ or 3/16″ depending on bolt spec)
- Medium-strength thread locker (Blue Loctite)
- Soft microfiber cloth
### Step 1: Removal of Existing End Caps
Ensure the exhaust pipes are completely cool. Locate the three socket-head fasteners securing the end cap to the rear of the 4-inch muffler body. Unscrew all three bolts counterclockwise and carefully slide the old end cap off the internal baffle collector ring.
### Step 2: Cleaning & Prepping
Wipe clean the rear outer lip and inner baffle rim of the muffler body to remove carbon dust or road grit that could scratch the new finish during installation.
### Step 3: Mounting the New Classic End Cap
Align the new Rinehart 4″ Classic end cap over the end of the muffler body, matching up the internal mounting bolt holes. Apply a small drop of blue thread locker to each fastener thread. Hand-thread all three bolts, then torque them down evenly in a circular pattern until snug.
Frequently Asked Questions
### Can I change my end caps without removing the mufflers from the bike?
Yes. The end cap mounting bolts are accessible from the rear of the motorcycle, allowing you to easily replace or swap your end caps without removing the mufflers or saddlebags.
### Will changing end caps alter the exhaust sound or volume?
No. The Classic end cap is a visual outer tip that fits over the internal baffle core. Replacing it will not alter the acoustic volume or power output of your Rinehart exhaust system.
### Order Your Rinehart 4″ Classic End Caps Today
Restore or customize the rear profile of your Harley-Davidson motorcycle with genuine billet styling. Order your Rinehart Racing 4″ Classic Replacement End Caps today with fast shipping!
