Custom Parts & Equipment (CPE) Coverage
Custom Parts & Equipment (CPE) Coverage — also called Accessory Coverage, Custom Equipment Coverage, or Aftermarket Parts Endorsement — is an optional add-on to your motorcycle insurance policy that specifically protects aftermarket modifications, accessories, and custom upgrades that were NOT installed by the original manufacturer. A standard comprehensive or collision policy typically only covers factory OEM equipment and caps accessories at $1,000-$3,000 total. The CPE endorsement extends that limit to $5,000, $10,000, $20,000, or even higher — covering everything from aftermarket exhausts and custom paint jobs to chrome accessories, audio systems, aftermarket wheels, and performance engine builds.
Definition maintained by the InsurTool Editorial Team. Last reviewed .
What is Custom Parts & Equipment (CPE) Coverage?
In plain English: You bought a $14,000 Harley Sport Glide stock, then dropped $12,000 on a Stage IV 131ci motor build, $6,500 on a custom airbrush paint job, $3,000 on chrome wheels, $2,200 on a Rockford Fosgate audio setup, and $1,800 on Akrapovič slip-ons. Total invested: $39,500. Without CPE, a total loss pays you ACV on the $14k stock bike (maybe $13k after depreciation) plus a $2k “accessory allowance” from your standard policy = $15,000. You lose $24,500. With a $30,000 CPE endorsement, total payout on the same total loss is $14k bike + $30k mods (minus deductible) = $43,500. That’s literally why CPE exists — for anyone who’s bolted on more than a few hundred dollars of bling or performance.
Key Takeaways
- Standard motorcycle policies usually cap accessories/mods at $1,000-$3,000 — everything above that is UNCOVERED
- CPE endorsement adds extra limits: common tiers are $5k, $10k, $15k, $20k, and up to $100k for high-end builds
- Covers: exhaust systems, custom paint/pinstriping/airbrushing, chrome parts, aftermarket wheels, audio/nav, engine performance mods, luggage racks, suspension upgrades, lighting, seats, saddlebags — basically anything not on the bike at the factory
- Typical cost: 2-4% of the CPE limit you choose per year — a $20,000 CPE endorsement costs roughly $400-$800 per year
- Requires DETAILED documentation: receipts, photos, parts invoices, and sometimes individual line-item schedules for high-value mods
- CPE is NOT the same as Agreed Value — Agreed Value sets the whole bike’s payout, CPE only boosts the accessory portion of an ACV policy
How Custom Parts & Equipment (CPE) Coverage Works
CPE functions as an extension of your existing Collision and Comprehensive coverage — it kicks in under the exact same circumstances (crashes, theft, vandalism, fire, hail, etc.), but it reimburses for the value of modified/aftermarket parts that a standard policy would exclude. Here’s the process step-by-step with real examples:
Step 1: Inventory Every Modification
You must document EVERY single aftermarket upgrade on the bike, even the “small” stuff that adds up. This means: all exhaust parts, any bodywork that isn’t stock factory color, paint/pinstripes/decals (custom, not dealer-added), wheels/tires if upgraded, brakes (Brembo upgrade kits), suspension (Ohlins, Fox, Race Tech), engine internal mods (cams, big bore kits, turbo/supercharger kits), air cleaners/intakes, fuel controllers/tuners, seats (Corbin, Saddlemen), handlebars/controls, lighting (LEDs, HIDs, auxiliary lights), audio/navigation/comm systems, luggage (hard bags, top boxes, tank bags if permanently mounted), crash bars/engine guards, highway pegs, backrests, chrome covers, fork tubes, grips, mirrors, and even aftermarket chains/sprockets if they’re premium upgrades. Take photos of every part (100+ is normal for a heavily modified bike) and save receipts in a folder and a cloud backup.
Step 2: Choose a CPE Limit and Schedule Items
Pick a CPE aggregate limit that covers 110-120% of your actual parts + labor investment (install labor counts in most CPE endorsements). For anything over $2,000 per individual part category (e.g., a $12,000 paint job, $8,000 engine build), most carriers require a “scheduled” CPE endorsement — you list each item with its individual value on the declarations page, rather than just a lump aggregate number.
Example 1 (Scheduled CPE): Your custom bagger has: $14,000 Stage IV 131 motor build, $6,500 custom airbrush paint, $4,200 chrome Bagger Nation wheels, $3,100 Rockford audio with speakers/amp/sub, $2,400 Arlen Ness body kit, $1,800 Akrapovič exhaust, $1,500 Corbin seats + backrest, $1,300 Ohlins front + rear suspension, $1,200 Kuryakyn chrome accessories. Total = $36,000 in mods. You take out a $40,000 Scheduled CPE endorsement, listing each item individually. The bike is stolen and recovered stripped: engine, paint, wheels, audio, exhaust all gone. Standard collision pays $15,000 (depreciated stock bike value). CPE pays the full $36,000 scheduled value for the missing items. Total payout = $51,000 (minus your $1,000 deductible). Without CPE, you’d have gotten $15,000 + $3,000 “accessory allowance” = $18,000 total. Difference: $33,000.
Step 3: Claims Process for Damaged/Stolen Custom Parts
After a covered loss, file the claim immediately. The adjuster will: 1) Verify the parts were on the bike (match photos/receipts against your declared scheduled list), 2) Verify the parts were destroyed/stolen (police report for theft, photos of crash damage), 3) Reimburse you either the actual installed cost (receipt-based) or fair market replacement cost. For custom paint, most carriers will either pay a certified custom painter’s written estimate or reimburse the original cost plus a small appreciation factor if the painter is well-known. For performance parts (engine builds, turbo kits), they may need a specialist inspector to confirm the mods were installed and functional before the loss.
Example 2 (Partial Loss + CPE): You low-side your custom R1 on the Dragon (Tail of the Dragon). Bike damage: $6,800 OEM parts + $4,200 custom aftermarket fairing kit (painted by a pro), $1,800 aftermarket rearsets, $1,400 aftermarket exhaust, $600 double-bubble windscreen. Total = $14,800. Deductible is $500. Standard policy pays $6,800 (OEM parts) + $3,000 accessory cap = $9,800 minus $500 ded = $9,300. With a $15,000 CPE endorsement, standard ($6.8k) + CPE ($8k aftermarket parts) = $14,800 minus $500 ded = $14,300. You pocket an extra $5,000 that covers the aftermarket fairing + rearsets + exhaust. The CPE premium for $15k was $540/year — paid for itself 9x over in ONE claim.
Custom Parts & Equipment (CPE) Cost and Pricing
CPE premiums are almost always a simple percentage of the limit you choose: 2% to 4% per year. Nationwide 2026 averages:
| CPE Coverage Limit | Annual Premium (2% of limit) | Annual Premium (4% of limit) | Best For |
|---|---|---|---|
| $5,000 | $100 | $200 | Basic mods: slip-on exhaust, fender eliminator, seat, luggage |
| $10,000 | $200 | $400 | Mid-level builds: exhaust + tuner + wheels + audio |
| $15,000 | $300 | $600 | Advanced: Stage 1-2 motor build + paint + wheels |
| $20,000 | $400 | $800 | Serious customs: Stage III-IV build + paint + audio |
| $30,000 - $50,000 | $600 - $1,000 | $1,200 - $2,000 | Show bikes, high-end choppers, turbo builds |
| $50,000+ (Scheduled) | $1,000+ | $2,000+ | SEMA-level customs, six-figure show bikes |
CPE Coverage vs. Standard Accessory Allowance vs. Agreed Value
| Coverage Type | How Mods Are Valued | Typical Mod Limit | Documentation Required | Best Scenario |
|---|---|---|---|---|
| Standard Policy (no CPE) | “Incidental accessory” cap, OEM replacement priority | $1,000 - $3,000 total | Usually none until claim | Stock daily riders, near-zero modifications |
| CPE Endorsement (Unscheduled) | Receipt value or replacement cost, added ON TOP of stock bike value | $5,000 - $20,000 aggregate | Receipts + photos recommended | Moderate mods (under $20k) on a daily-ridden bike |
| CPE Endorsement (Scheduled) | Each part individually listed and valued; guaranteed per-line payout | $15,000 - $100,000+ | Appraisal, line-item list, photos, receipts mandatory | High-value builds, custom paint, engine builds, show bikes |
| Agreed Value Whole-Bike Policy | ONE number set upfront that includes bike + ALL mods together | $20,000 - $500,000+ | Full appraisal, build receipts, inspection required | Custom choppers, vintage restorations, collector customs (best option for extreme builds) |
Frequently Asked Questions (FAQ)
What exactly IS and ISN’T covered under CPE? Are there exclusions I need to know?
CPE covers permanently-installed custom and aftermarket parts that are bolted, welded, painted, or otherwise attached to the motorcycle. Covered: aftermarket exhaust, slip-ons, full systems, custom paint and pinstriping and decals, non-stock wheels and tires (if upgraded), performance brake kits, suspension upgrades, engine internal parts (cams, pistons, big bore, turbo, supercharger), fuel management, intake kits, aftermarket seats, handlebars, controls, grips, mirrors, lighting, audio/nav permanently mounted, chrome covers and accessories, crash bars, luggage racks, fairings, windscreens, rearsets, license plate eliminators. Usually NOT covered: riding gear (helmets, jackets, gloves — add a separate gear/apparel endorsement), personal property inside saddlebags (phones, tools, laptops), wear-and-tear items like chains/sprockets/brake pads if you’re just replacing them on a schedule, damage from improper installation by you (DIY failures), parts that were recalled for safety, and any racing/closed-course use damage. Always ask your agent for a written list of CPE inclusions and exclusions specific to YOUR carrier.
Do I need CPE even if I already have a Full Coverage policy? I thought “full coverage” covered everything.
That’s the #1 mistake custom bike owners make. “Full coverage” (liability + collision + comp + UM + MedPay) only means you have the five standard policy components. It does NOT mean your modifications are covered. Full coverage is built around the motorcycle’s VIN and factory MSRP/ACV. Every carrier writes a small “accessory allowance” into their base policies — Progressive’s is $3,000 on standard policies; Geico’s is $1,000; State Farm’s is $2,500. Beyond those numbers, your mods are uninsured unless you add CPE. Ask your agent one question: “What is the total OEM + accessory limit on my current collision/comp for non-factory custom equipment?” If the answer is less than what you’ve spent on parts and labor, you need CPE — simple as that.
What’s better for a custom build: CPE endorsement or an Agreed Value policy?
For moderate mods ($5k-$25k) on a modern bike you still ride regularly, CPE is usually cheaper and easier — no formal appraisal, just receipts and photos, and you can adjust the limit anytime without re-underwriting the whole bike. For extreme builds ($30k+ in mods), full customs (frame-up choppers, vintage restorations, custom paint that’s itself a $10k+ art piece), or anything where the mod value EXCEEDS the stock bike’s KBB value, an Agreed Value policy is STRONGLY superior. CPE + ACV still depreciates the base bike, and proving the value of a one-off paint job via receipts in a claim is way harder than just having it baked into a pre-agreed total. Rule of thumb: if mods > 120% of stock bike ACV, go Agreed Value. If mods < 80% of stock bike ACV, go CPE. In between, shop both and compare total premium vs. total payout.
How detailed does my CPE documentation need to be? Will the adjuster really reject my claim for “bad photos”?
They can, and they will. CPE is one of the most frequently disputed motorcycle claim categories because fraud is rampant (people “add” $10k in phantom mods after a crash). To avoid disputes, do all of these BEFORE you file a claim: 1) Save EVERY receipt — even a $19 bar-end mirror receipt. Scan them all to PDF and back up to the cloud plus a USB drive at a friend’s house. 2) Do a complete photo walkaround of the ENTIRE bike every 6 months: wide shots (4 angles), closeups of every custom part (paint details, exhaust engravings, wheel branding, audio equipment, motor components with VIN/build plate, chrome accessories). 3) Record a 5-10 minute HD video walkaround narrating every modification — “This is the $12,000 S&S Cycle 124ci motor I installed in March 2025, receipt #442 from my mechanic, Joe’s Cycle Shop.” Upload to YouTube as unlisted, save the link. 4) If CPE is over $15k, get a one-page written estimate from a reputable motorcycle shop or custom builder stating the fair market installed value of all modifications. Do this every 2 years. If you have all four, no adjuster will fight you. If you have zero of these, you’ll be lucky to get 50 cents on the dollar for your mods.
Can CPE be added mid-policy, or do I have to wait for renewal? What if I add new parts tomorrow?
Nearly all carriers let you add, remove, or increase CPE limits MID-POLICY with a simple endorsement change — no waiting for renewal, no cancellation penalty. The change takes effect the same day (or next business day) and you’re charged a pro-rated premium for the remaining policy term. This is critical: if you just dropped $6,000 on a new motor build or paint job, CALL YOUR AGENT THAT DAY to increase CPE before you ride the bike. Don’t wait. If you low-side on the way home from the custom shop and haven’t added those parts to CPE yet, you’re completely uninsured for the new parts. Most carriers make it trivially easy: a 5-minute call, email the receipts, they issue an endorsement PDF, and you’re covered. Some apps let you do it entirely in-app with photo uploads.
What if my custom parts are damaged by a mechanic or during transport/shipping? Does CPE cover that?
Usually not, and this is a massive blind spot. Standard CPE endorsements only cover perils listed under Collision and Comprehensive — which means crash, theft, vandalism, fire, hail, etc. Damage from negligent mechanics, transport companies, detailers, or storage facilities are typically EXCLUDED from motorcycle policies entirely. For those scenarios, you need: 1) The mechanic’s garage keepers legal liability insurance to cover their mistakes (always verify a shop carries this before dropping off a custom bike), 2) The transport company’s cargo insurance with a per-vehicle limit high enough for your build, and 3) If shipping cross-country, a separate specialty transit insurance policy from a powersports insurer like Hagerty or Collectible Insurance Agency — they offer standalone in-transit coverage that includes CPE-level values for customs being shipped to shows or auctions.
Sources & References
- Progressive Motorcycle - Custom Parts & Equipment (CPE) Endorsement Filings & Underwriting Guidelines (2025)
- Dairyland Cycle - Specialty Accessory Coverage Product Sheet & Claim Adjustment Process
- Insurance Information Institute (III) - Motorcycle Coverage Endorsements: Understanding Custom Parts (2025)
- NAIC - Custom Motorcycle Equipment Valuation: Claims Handling Best Practices Bulletin
- Markel Specialty - Scheduled vs. Unscheduled Custom Equipment Endorsement Comparative Study
- Hagerty - Custom & Collectible Motorcycle: CPE vs. Agreed Value Decision Framework
- American Motorcyclist Association (AMA) - Custom Bike Owner Insurance Survey: Claims Success Rates by Documentation Level (2024)
Related Terms
Agreed Value Motorcycle Full Coverage Motorcycle Motorcycle Liability Lay-Up / Seasonal Insurance
About this definition
Written and checked against the primary sources linked on this page by the InsurTool Editorial Team. Definitions describe how these terms are used in the United States; policy wording differs between insurers, and state law changes the meaning of some terms. Your own policy document is the authority for your coverage.
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