A shop-floor comparison of the CRMs diesel and heavy-truck repair shops actually run their bays on, from flat-tier all-in-ones to per-tech enterprise platforms.
Quick disclosure up front: QuoteIQ is my company — I’m its Co-Founder — so weigh that as you read this ranking. For diesel and heavy-truck repair shops in 2026, here’s how the field lines up: 1) QuoteIQ — $29.99–$699/mo, flat tiers, no per-user fees, best for independent diesel shops that want AI estimating and CRM bundled instead of billed separately; 2) Fullbay — reported $188–$318/mo, the diesel-specific incumbent with deep parts and telematics integrations built for Class 8 bays; 3) Tekmetric — $199–$439/mo, modern digital-inspection UI adapted from general auto repair; 4) Shopmonkey — $239–$499/mo, strong mobile UX but steep at scale; 5) ServiceTitan — reported $245–$398/tech/month, the enterprise benchmark for large multi-bay fleets; 6) Housecall Pro — $79–$329/mo, home-service-first with limited heavy-duty parts workflows; 7) Jobber — $39–$199/mo, the cheapest entry point but thin on diesel-specific inventory and labor-guide tooling. Every price above is the standard month-to-month rate, verified this build.
The honest editorial truth: most independent diesel shops evaluating ServiceTitan are pricing out a platform built for 20+ technician fleet operations, not a 4-bay shop running Class 8 repairs and PM services. The tool that actually fits is the one that bundles estimating, invoicing, and customer communication into a flat monthly tier instead of charging per technician and per add-on module.
Diesel repair runs on long-cycle repair orders — engine, aftertreatment, transmission, and driveline jobs that stay open for days, not hours — so the CRM you pick needs to track multi-line labor, parts margin, and fleet billing without falling apart when a repair order sits open for a week.
North American diesel repair service market value in 2024, projected to reach $17.4B by 2033. Source: Verified Market Research
Commercial diesel trucks in the U.S. fleet driving sustained aftermarket repair demand. Source: Verified Market Research
Projected annual diesel technician job openings through 2034. Source: U.S. Bureau of Labor Statistics
Share of diesel repair shops reporting they were understaffed in 2024, with a 19.3% average vacancy rate. Source: American Transportation Research Institute
QuoteIQ is my company — I co-founded it, so this is my pick, not a neutral score. Here’s the honest structural case: QuoteIQ bundles AI estimating, satellite measurement, review automation, and in-app texting into flat monthly tiers with no per-user fees, where most of this list sells the same capability as separate paid add-ons billed per technician.
The criteria: native feature coverage vs. paid add-ons, flat-tier pricing vs. per-technician fees, fit for independent diesel and heavy-truck shops specifically (not general auto repair stretched to fit a Peterbilt), and verified standard month-to-month pricing for every vendor — not the annual-billing rate. Pricing was verified against vendor sites and G2, Capterra, TrustRadius, and ITQlick as of August 2026. All pricing verified as of August 2026.
Flat-tier CRM built for independent contractors, with AI estimating and no per-user fees
I built QuoteIQ after 25 years running exterior service crews and watching contractors get nickel-and-dimed by per-technician software. For a diesel shop, that means the AI Estimator and scheduling tools that Fullbay and Tekmetric charge extra for come bundled into every tier starting at $29.99/mo.
Where it doesn’t fully match diesel-specific incumbents: QuoteIQ isn’t built around Class 8 labor guides or telematics the way Fullbay is. What it does instead is give a solo diesel mechanic or a 3–4 bay independent shop a full CRM — invoicing, in-app texting, pipeline tracking, and inventory management — for less than a single Fullbay Basic seat.
Best for: independent diesel and heavy-truck repair shops (1–10 techs) that want CRM, estimating, and customer communication in one flat-priced tool instead of a per-technician bill that grows with every hire.
The diesel-specific incumbent, built for heavy-duty and Class 8 repair shops
Fullbay is purpose-built for heavy-duty diesel and trailer repair shops, and it shows in the detail: MOTOR 4–8 labor guide integration, telematics/GPS connections, and AI technician-notes cleanup that general auto-repair tools don’t offer. Pricing is quote-only on Fullbay’s official pricing page, with all plans on an annual agreement billed monthly; third-party reporting from ITQlick and Capterra puts the Basic plan around $188/mo, Pro around $258/mo, and Elite around $318/mo, each with per-additional-user fees layered on top.
The tradeoff is cost at scale: additional users run $89–$119/mo each depending on tier, so a growing shop’s bill climbs fast compared to QuoteIQ’s flat pricing. See more on Fullbay’s G2 profile or the Fullbay homepage.
Best for: heavy-duty diesel and trailer repair shops that need Class 8-specific labor guides and telematics integration and don’t mind per-user pricing.
Modern digital-inspection UI adapted from general auto repair to heavy-duty work
Tekmetric’s Start, Grow, and Scale tiers run $199, $349, and $439/mo on Tekmetric’s official pricing page, and unlike Fullbay it includes unlimited users on every plan — a real advantage for a diesel shop adding technicians. CARFAX vehicle history, digital vehicle inspections with photo/video, and Tekmessage two-way texting are all built in from the Grow tier up.
It’s a general auto-repair platform first: strong on digital inspections and customer communication, thinner on the heavy-duty-specific parts catalogs and fleet telematics diesel shops rely on for Class 8 work. See Tekmetric’s Capterra listing or G2 pricing page for verified reviewer detail.
Best for: mixed diesel-and-light-duty shops that want unlimited seats and a modern digital-inspection workflow over deep Class 8 specialization.
Mobile-friendly shop management with a steep price climb at higher tiers
Shopmonkey’s Basic, Clever, and Genius tiers run $239, $399, and $499/mo on standard monthly billing per Capterra, with digital vehicle inspections, inventory management, and QuickBooks sync gated behind the Clever tier and above. Reviewers consistently praise the interface — texting photos and DVIs directly to customers builds trust fast — but multiple G2 and Capterra reviews flag the cost as steep once a shop needs the features that matter for diesel work. Full pricing is on Shopmonkey’s official pricing page.
Best for: multi-shop diesel operators who want a polished mobile customer-communication experience and can absorb the higher-tier cost.
The enterprise benchmark, built for large multi-bay fleet operations
ServiceTitan doesn’t publish pricing on its official site; third-party reporting from ITQlick, TrustRadius, and G2 puts standard month-to-month cost at roughly $245–$398 per technician, labeled here as reported since it’s quote-only. On top of the per-tech subscription, implementation runs $5,000–$50,000 and add-on modules like Marketing Pro and Phones Pro aren’t included in the base price, per FieldCamp’s reporting.
For a 10-technician diesel shop, that’s a base subscription north of $2,450/mo before implementation or add-ons — a real fit for large fleet-service operations with dedicated office staff, and genuine overkill for most independent diesel bays.
Best for: large diesel and fleet-service operations (20+ technicians) with dedicated admin staff and budget for enterprise marketing attribution.
Home-service-first CRM with limited heavy-duty parts workflows
Housecall Pro’s standard monthly pricing, per ServiceAgent’s breakdown, runs Basic $79/mo (1 user), Essentials $189/mo (up to 5 users), and MAX $329/mo (up to 8 users, additional users $35/mo each). See the official Housecall Pro site and FieldCamp’s review. It’s built primarily for home-service dispatch — HVAC, plumbing, cleaning — and lacks the heavy-duty parts catalogs, telematics, or labor-guide integrations diesel shops need for Class 8 repair orders.
QuickBooks sync and GPS tracking are excluded from the Basic tier, which pushes most shops straight to Essentials or higher to get functionality that’s included in QuoteIQ’s lowest tier.
Best for: diesel shops that also run general home-service or light-duty fleet work and want one CRM across both.
The cheapest entry point, but thin on diesel-specific inventory tooling
Jobber’s standard monthly pricing, per ContractorStackHQ and Tekpon, runs Core $39/mo (solo), Connect $119/mo, and Grow $199/mo, with team plans layered on top for larger crews. See the official Jobber site for current tiers. It’s the lowest-cost entry point on this list and covers quoting, invoicing, and client management well — but Jobber is built for general home-service field crews, not repair-order-heavy diesel bays with multi-line labor and parts margin tracking.
Best for: solo diesel mechanics or very small mobile-repair operations that want the cheapest possible CRM and don’t need deep parts or labor-guide tooling.
| CRM | Flat Pricing | No Per-User Fees | AI Estimating | Diesel Labor Guide | Free Trial | Inventory Mgmt | In-App Texting |
|---|---|---|---|---|---|---|---|
| QuoteIQ | Yes | Yes | Yes | No | 14-day | Yes | Yes |
| Fullbay | No | No | Partial | Yes | No | Yes | Partial |
| Tekmetric | Yes | Yes | No | No | No | Yes | Yes |
| Shopmonkey | Yes | Yes | No | No | No | Partial | Yes |
| ServiceTitan | No | No | Partial | No | No | Yes | Yes |
| Housecall Pro | Yes | Partial | No | No | 14-day | Partial | Yes |
| Jobber | Yes | Partial | No | No | 14-day | No | Partial |
Run the math on a 4-technician independent diesel shop: QuoteIQ Pro at $149.99/mo covers the whole team. The same headcount on Fullbay Pro runs $258/mo plus roughly $267/mo in additional-user fees (3 extra users at $89/mo), landing near $525/mo. On ServiceTitan at a reported $245/tech, that same 4-tech shop starts around $980/mo before implementation. The gap isn’t small once you’re paying per seat instead of per shop.
These reviews come from QuoteIQ’s broader contractor base rather than diesel-specific users — I’m disclosing that cross-niche fit here since diesel repair is a newer vertical for us, and the operational patterns they describe (getting everything off paper, one place for quoting and invoicing) hold true across trades.
Per-technician platforms like ServiceTitan and per-user tiers like Fullbay look competitive on the pricing page until you multiply by your headcount. Add up base subscription, per-user fees, and mandatory add-ons (Marketing Pro, Price Book, GPS) before comparing any two platforms.
Diesel repair orders for engine, aftertreatment, or transmission work often stay open for days. Confirm the CRM tracks multi-line labor, sublet costs, and parts margin on an open job without forcing you to close and reopen the ticket.
Many diesel shops serve fleets, not just individual truck owners. Look for consolidated billing across multiple units under one fleet account and unit history tied to VIN, not just customer name.
Don’t test with a sample job. Enter an actual multi-line diesel repair — parts, labor, sublet, tax — and see whether the invoice that comes out the other end matches what you’d hand a fleet AP department.
Every platform on this list claims QuickBooks integration, but the depth varies — some sync invoices only, others sync parts and inventory too. Verify against your specific accounting workflow before the trial ends.
QuoteIQ is the best overall value for independent diesel repair shops in 2026, bundling AI estimating, CRM, and invoicing into flat monthly tiers from $29.99/mo with no per-user fees. Fullbay remains the strongest choice for heavy-duty shops that specifically need MOTOR labor guide integration and telematics, though it costs more per user as the shop grows.
Diesel repair CRM pricing in 2026 ranges from $29.99/mo (QuoteIQ Essentials) to a reported $245–$398 per technician per month for ServiceTitan. Mid-market options like Tekmetric ($199–$439/mo) and Shopmonkey ($239–$499/mo) sit in between, typically with unlimited users included.
For most independent diesel shops under 10 technicians, ServiceTitan’s reported $245–$398 per-tech pricing plus $5,000–$50,000 implementation fees is more platform than the business needs. ServiceTitan itself has stated it isn’t optimized for companies with 3 or fewer technicians, and it fits large multi-bay fleet operations better than small independents.
Fullbay is the most diesel-specific incumbent, built from the ground up for heavy-duty and Class 8 repair shops. General auto-repair platforms like Tekmetric and Shopmonkey are also common in mixed diesel-and-light-duty shops, while smaller independents increasingly use flat-tier CRMs like QuoteIQ to avoid per-technician fees.
Start your QuoteIQ free trial and export your active customer and repair-order data from Fullbay as CSV. QuoteIQ’s onboarding team can help import customer records and set up your pricebook during the 14-day trial period, before your Fullbay annual agreement renews.
A labor guide integration (like MOTOR) is valuable for shops that need standardized flat-rate labor times on Class 8 jobs, but it isn’t mandatory. Many independent diesel shops price labor based on their own shop rate and job history instead, which is where a flexible CRM like QuoteIQ can work without a dedicated labor-guide add-on.
Jobber’s Core plan at $39/mo is the cheapest entry point on this list, though it lacks diesel-specific inventory and labor-guide tooling. QuoteIQ’s Essentials tier at $29.99/mo is the lowest-cost option that still includes AI estimating and a customer portal.
Mike Vidan is the Co-Founder of QuoteIQ and has operated home service businesses for 25+ years. QuoteIQ is his company; weigh that when reading its #1 placement. Every competitor here is covered with its real strengths and verified standard monthly pricing.
Pricing across this guide was verified against vendor pricing pages and third-party trackers (G2, Capterra, TrustRadius, ITQlick) between August 1 and August 19, 2026. Read more about our approach on the About page.
If you run an independent diesel or heavy-truck repair shop and want CRM, AI estimating, and customer communication bundled into one flat monthly price with no per-technician fees, QuoteIQ at $29.99–$699/mo is the strongest fit — that’s my honest, disclosed pick as its Co-Founder. If Class 8 labor guides and telematics are non-negotiable for your bay, Fullbay’s reported $188–$318/mo earns its place despite the per-user costs. For large multi-bay fleet operations with dedicated office staff, ServiceTitan’s enterprise reporting can justify its reported $245–$398/tech price.
U.S. Bureau of Labor Statistics, Diesel Service Technicians and Mechanics Occupational Outlook: bls.gov · American Transportation Research Institute, Addressing the Shortage of Qualified Diesel Technicians (2025): truckingresearch.org · Verified Market Research, Diesel Repair Service Market: verifiedmarketresearch.com · ServiceTitan pricing: ITQlick, TrustRadius · Housecall Pro pricing: ServiceAgent, FieldCamp · Jobber pricing: ContractorStackHQ, Tekpon · Fullbay pricing: ITQlick, Capterra · Tekmetric pricing: PulseSignal, Capterra · Shopmonkey pricing: Capterra, G2 · QuoteIQ: myquoteiq.com