What engine rebuilds actually cost — the real numbers
Before we get to financing, let's anchor the cost. The most common heavy-truck engine failures that create emergency capital needs:
- CAT C15 head gasket rebuild: $18,000–$28,000 for a qualified shop. A full reman (remanufactured long block) runs $35,000–$50,000 depending on the shop and whether you're at a dealer vs. independent.
- Detroit DD15 injector + overhead: $12,000–$22,000. A full DD15 reman runs $30,000–$45,000.
- Cummins X15 rebuild: $15,000–$25,000 for a rebuild; $38,000–$48,000 for a reman.
- Transmission (Eaton Fuller 18-speed): $6,000–$14,000 for a rebuild; $12,000–$18,000 for a reman.
For this article, we'll model a $40,000 engine job — a realistic reman scenario for a high-mileage CAT or Detroit in a 2015–2018 truck. This is the range where owner-operators most commonly face the MCA vs. equipment financing decision.
Path 1: Equipment financing for the engine rebuild
Equipment financing for truck repairs and engine replacements exists specifically for this situation. The lenders who operate in this space:
- Crest Capital: Specializes in commercial equipment including truck engines. Has direct relationships with many independent truck repair shops — a vendor referral can get you funded in 24 hours. Rates typically 12–18% APR for qualified owner-operators.
- Currency Capital: Broader equipment lender. Rates 10–18% APR depending on credit and truck age. Funds in 1–3 business days.
- Balboa Capital: Good for owner-operators with 2+ years in business. Rates 11–19% APR.
- Beacon Funding: Transportation equipment specialist. Rates 12–20% APR, will go lower FICO than the broader lenders.
- Mission Financial: Subprime trucking specialty. Rates 18–22% APR for credit scores in the 550–620 range.
For a standard-credit owner-operator (620+ FICO, 2+ years TIB), let's model this at 15% APR over 4 years:
- Loan amount: $40,000
- Rate: 15% APR, 48-month term
- Monthly payment: $1,113/month
- Total repaid: $53,424
- Total interest cost: $13,424
- Effective daily cost: $37.29/day
The truck is in the shop for 2–4 weeks during the rebuild. Your $1,113/month payment starts the month after funding. You're not generating revenue during the repair — but the payment structure gives you a full 30-day window before the first payment hits.
Path 2: MCA for the engine rebuild
A typical MCA offer for a qualified owner-operator doing $80,000/month gross:
- Advance amount: $40,000
- Factor rate: 1.32
- Total repayment: $52,800
- Fee (cost of capital): $12,800
- Term: 9 months
- Business days in term: ~189
- Daily ACH: $279/day
Wait — $12,800 in MCA fees vs. $13,424 in equipment loan interest. The dollar amounts look almost identical. This is why owner-operators sometimes choose the MCA: the fee seems comparable. But this comparison hides the critical difference.
The cash flow disaster hiding in the math
Here's what the raw dollar comparison misses: your truck is in the shop for 3–5 weeks during and after the engine rebuild. The ACH doesn't care.
MCA daily ACH schedule during a 4-week engine rebuild downtime:
- Week 1 (truck in shop, $0 revenue): $279/day × 5 days = $1,395 ACH, $0 revenue
- Week 2 (still in shop): $1,395 ACH, $0 revenue
- Week 3 (still in shop): $1,395 ACH, $0 revenue
- Week 4 (back on road, partial week): $1,395 ACH, partial revenue
That's roughly $4,200–$5,600 in ACH debits hitting your account while the truck generates nothing. If you had $8,000 in your account when you took the MCA, you may be at $2,400–$3,800 by the time the truck returns to service. Now you're trying to re-build your buffer while still paying $279/day.
The equipment financing path: no payment hits for 30 days after funding. Your first $1,113 payment is due when you've already had a few weeks back on the road generating revenue. Structurally, the cash flow timing is completely different.
When MCA genuinely makes sense for engine work
There are real scenarios where MCA is the right call despite the cost:
- Credit below 600: Equipment financing from standard lenders becomes very difficult to place below 600 FICO, even with Mission Financial as a fallback. If you're at 560 FICO with a recent 30-day late, MCA may be your only option that funds in 48 hours.
- Recent bankruptcy (discharged within 2 years): Equipment lenders generally want 2+ years post-discharge. If you're at 18 months post-BK with a recovering credit profile, MCA funders like Mantis Funding or Kalamata Capital may look at it where equipment lenders won't.
- Under 12 months TIB: Equipment financing for owner-operators almost universally requires 12 months in business. If you're at 8 months TIB, you may not have the equipment financing option at all.
- Truck older than 15 years: Equipment lenders won't finance rebuilds on trucks this old. If the truck's value doesn't support the loan, equipment financing disappears as an option.
The Crest Capital vendor shortcut most shops won't tell you about
If you're working with a mid-to-large independent truck repair shop, ask the shop manager directly: "Do you have a financing relationship with Crest Capital or Currency Capital?" Many shops that do high-volume engine work have direct vendor agreements with equipment lenders. Here's why this matters:
- The shop submits the financing application on your behalf with the vendor quote
- Crest Capital's vendor-referred deals can fund in 24 hours vs. 3 days for direct applications
- The shop gets paid directly by the lender — no escrow, no delay
- The shop's relationship with the lender can sometimes smooth over minor credit issues
If the shop doesn't have a lender relationship, you can still apply directly with Crest Capital or Currency Capital using the shop's written repair estimate as collateral documentation. The estimate replaces a traditional equipment appraisal for most repairs under $75,000.
Decision framework: which path for your situation
Equipment financing (Crest, Currency, Balboa, Beacon, Mission):
- FICO 600+ with 12+ months TIB
- Truck under 15 years old
- You have 1–3 business days (not a same-day emergency)
- Repair shop can provide a written estimate
- This is the right answer for roughly 85% of owner-operators
MCA (as a last resort, sized carefully):
- FICO below 580 with recent derogatory marks
- Recent bankruptcy (under 2 years post-discharge)
- Under 12 months TIB
- Truck is old enough that equipment financing won't touch it
- If MCA is required: size it to the minimum necessary, not the full rebuild cost. Finance the parts separately from the labor if possible. Keep daily ACH under 6% of your average daily revenue.
Frequently asked questions
- Do equipment lenders care about how old my truck is?
- Yes — significantly. Most equipment lenders cap out at trucks 10 years old or fewer for standard rates. Trucks 11–15 years old may qualify through specialty subprime lenders like Mission Financial, but at higher rates (18–22% APR) and often with a larger down payment requirement (15–25%). Trucks older than 15 years are typically cash or MCA territory — conventional equipment financing becomes very difficult to place.
- What credit score do I need for trucking equipment financing?
- Currency Capital and Crest Capital typically want a 620+ FICO for standard programs. Balboa Capital and Beacon Funding will sometimes work down to 600. Mission Financial explicitly serves the 550–620 range for trucking, but at 18–22% APR. Commercial Fleet Financing and Lone Mountain Truck Leasing have their own overlays — generally 600+ for prime programs. Below 580 with recent derogatory marks, equipment financing becomes very hard to place; that's when MCA or factoring-based bridge capital comes into the picture.
- Can I get equipment financing for a used truck as an owner-operator?
- Yes, but the conditions matter. Most lenders want the truck to be under 10 years old, have a clean title, and appraise above the loan amount. Lone Mountain Truck Leasing and Mission Financial both specialize in used owner-operator trucks. Crest Capital has a used-truck specialty program as well. You'll generally need a down payment of 10–20% for a used unit. New authority (under 12 months) is the bigger obstacle than used condition — most equipment lenders want 12+ months of TIB.
- How fast does Crest Capital or Currency Capital fund an engine rebuild?
- Crest Capital, for vendor-referred deals, can fund in as little as 24 hours with a signed vendor quote and basic financials. Currency Capital is typically 1–3 business days. Both are faster than most people expect for equipment financing — the 'equipment financing takes weeks' perception is usually about bank SBA loans, not specialty equipment lenders. For engine work specifically, having the repair shop's written estimate in hand before you apply speeds things materially.
- Will my carrier or freight broker care if I have an MCA?
- Carriers don't typically audit your financing directly, but the behavioral consequences of an MCA can affect your relationship with them. If a $156/day ACH starts bouncing because your truck is in the shop and you're not generating revenue, the NSF cascade — bank fees, default notices, possible UCC lien enforcement — can create disruptions that affect your ability to pay insurance, registration, and other carrier compliance requirements. Some factoring companies also review your bank statements when you first sign up, and a high-factor-rate MCA ACH that's straining your account can affect their willingness to advance on your invoices.
Related reading
- When does an MCA actually fit a trucking cash cycle?
- Best MCA, factoring, and equipment financing options for trucking in 2026
- Fuel card advance vs MCA — what fits a fuel-only cash crunch
- The 6% rule for trucking: how big should your MCA payment be?
- How factor rates actually work — the math plainly stated