Compel Groupgroup

Maintenance & Parts

286 products available

Need professional auto repair tools, automotive parts, and car maintenance tools for commercial fleets? Compel supplies workshop managers and fleet mechanics with field-tested components for heavy-duty maintenance. Our range covers precision diagnostic scanners, calibration instruments, structural adhesives, and thread repair kits.

We source inventory directly from top-tier manufacturers to meet strict tolerances in commercial workshops. By supplying reliable fasteners and specialized tools in one place, we help you minimize vehicle downtime. Streamline your supply chain with our fast global shipping and bulk trade pricing.

286 products in Maintenance & Parts

Automotive Relay Tester | 11-25V Car Battery Check | LED Indicator Diagnostic Tool - Professional Grade Tool

Maintenance & Parts

Automotive Relay Tester | 11-25V Car Battery Check | LED Indicator Diagnostic Tool

CMP-01437MAIN-00274
$16.99
Automotive Relay Tester | 12V Electrical System Checker | Car, Truck, RV Battery Indicator - Professional Grade Tool

Maintenance & Parts

Automotive Relay Tester | 12V Electrical System Checker | Car, Truck, RV Battery Indicator

CMP-01438MAIN-00275
$13.99
Car & Motorcycle Battery Tester | 6V/12V Battery Analyzer | 100-2000 CCA Cranking & Charging Tool - Professional Grade Tool

Maintenance & Parts

Car & Motorcycle Battery Tester | 6V/12V Battery Analyzer | 100-2000 CCA Cranking & Charging Tool

CMP-01440MAIN-00276
$110.99
Automotive Relay Tester | 11-25V Digital Display | 4/5 Pin Vehicle Battery Diagnostic Tool - Professional Grade Tool

Maintenance & Parts

Automotive Relay Tester | 11-25V Digital Display | 4/5 Pin Vehicle Battery Diagnostic Tool

CMP-01442MAIN-00277
$19.99
Automotive Circuit Tester | Short & Open Finder | 6-42V DC Cable Tracer - Professional Grade Tool

Maintenance & Parts

Automotive Circuit Tester | Short & Open Finder | 6-42V DC Cable Tracer

CMP-01585MAIN-00278
$14.99
Automotive Short & Open Finder | Circuit Tester | 6-42V DC - Professional Grade Tool

Maintenance & Parts

Automotive Short & Open Finder | Circuit Tester | 6-42V DC

CMP-01604MAIN-00279
$21.95
Universal 12V electric car fuel pump for diesel, petrol, and gasoline, compatible with EP500-0 and 12585-52030 models.

Maintenance & Parts

12V Electric Fuel Pump | EP500 Diesel & Gasoline Compatible | Replaces 1258552031

CMP-01614MAIN-00280
$20.95
VIDA Dice V2014D automotive diagnostic scanner with green circuit board, featuring J2534 protocol support for vehicle fault diagnosis.

Maintenance & Parts

J2534 Diagnostic Scanner | 1:1 EWD Protocol | Automotive ECU Programming

CMP-00001MAIN-00176
$179.99
2025 New KINGBOLEN Ediag Elite Lifetime free Car Diagnostic  - Premium Automotive & Powersports > Maintenance & Parts with professional quality and features

Maintenance & Parts

2025 Elite Car Diagnostic Scanner | Lifetime Free Updates | All System 15 Resets Bi-Directional

CMP-00005MAIN-00177
$349.99
OBD2 Main Diagnostic Cable For Volvo Vocom Interface Main Te - Premium Automotive & Powersports > Maintenance & Parts with professional quality and features

Maintenance & Parts

Diagnostic Cable | VOCOM Interface Main Test Cable | Durable OBD2 Tool 88890304

CMP-00006MAIN-00178
$119.99
FOCIM Tester for Volvo module 22771624 23140886 21855896 227 - Premium Automotive & Powersports > Maintenance & Parts with professional quality and features

Maintenance & Parts

Module Tester | Speaker & Light Detection Tool | Compatible with 22771624, 23140886

CMP-00007MAIN-00179
$459.99
VDIAGTOOL V500PRO Automotive Circuit Tester 9V-30V Car Elect - Premium Automotive & Powersports > Maintenance & Parts with professional quality and features

Maintenance & Parts

Automotive Circuit Tester | 9V-30V with Oscilloscope | 12V/24V Car & Truck Electrical

CMP-00008MAIN-00180
$449.99
ANCEL X7 HD Heavy Duty Truck OBD2 Automotive Scanner Full Sy - Premium Automotive & Powersports > Maintenance & Parts with professional quality and features

Maintenance & Parts

Duty Truck Diagnostic Scanner | 12V/24V OBD2 with DPF Regen | Full System ECU Reset

CMP-00009MAIN-00181
$1,799.99
ANCEL DM500 OBD2 scanner specialized for instrument cluster correction, oil service reset, and EEPROM read/write functions.

Maintenance & Parts

Cluster Correction Tool | OBD2 Scanner for Oil Reset & EEPROM Read/Write | Instrument Adjustment

CMP-00010MAIN-00182
$1,159.99
ICOM NEXT A2 diagnostic interface for BMW offline programming and DOIP repair, with firmware V156 and 2025.3 software support.

Maintenance & Parts

ICOM NEXT Diagnostic Scanner | V2025.3 Offline Programming Tool | DOIP & Firmware Support

CMP-00011MAIN-00183
$499.99
MUCAR 892BT AI diagnostic tool with CANFD, DOIP support, full-system scanning, 35+ resets, and lifetime free software updates.

Maintenance & Parts

892BT AI Diagnostic Tool | CANFD/DOIP OBD2 Scanner with Full System ECU Coding

CMP-00013MAIN-00184
$1,099.99
Complete 8-piece set of OBD2 converter cables and connectors for use with TCS PRO and other professional diagnostic interfaces.

Maintenance & Parts

OBD2 Cable Set | 8-Piece Connector Kit for Truck & Car Diagnostic Readers

CMP-00014MAIN-00185
$79.99
Renolink V2.10/V2.11 diagnostic tool for Renault vehicles, specializing in airbag reset, ECU programming, and UCH/key module coding.

Maintenance & Parts

Airbag Reset Tool | OBD2 Diagnostic Scanner for UCH/ECU Programming | V2.11 Software

CMP-00016MAIN-00186
$59.99
XTOOL X100 Pro2 OBD2 automotive scanner with key programming, EEPROM adapter, and lifetime free updates for comprehensive vehicle diagnostics.

Maintenance & Parts

X100 Pro2 OBD2 Scanner | Key Programmer & EEPROM Adapter | Lifetime Free Updates

CMP-00017MAIN-00187
$1,358.99
Diesel fuel injector nozzle tester with scale gauge for measuring pop pressure and spray pattern on common rail systems.

Maintenance & Parts

Fuel Injector Tester | Common Rail Pressure Gauge | Nozzle Repair Tool for Tractors

CMP-00018MAIN-00188
$319.99
1:1 DICE 2014D J2534 protocol module for Volvo vehicle diagnostics, programming, and OBD2 scanner pass-through functions.

Maintenance & Parts

Protocol Module | 1:1 DICE 2014D Diagnostic Scanner | For Vo-lvo OBD2 Maintenance

CMP-00019MAIN-00189
$279.99
Heavy-duty truck diagnostic equipment set for reading fault codes and performing system tests on commercial vehicle ECUs.

Maintenance & Parts

Heavy-Duty Truck Diagnostic Equipment | Professional OBD2 Scanner | Commercial Vehicle Tool

CMP-00020MAIN-00190
$399.99
XTOOL D8W/D8S Bluetooth automotive scanner with ECU coding, 42+ service resets, CANFD, DOIP, and FCA topology support.

Maintenance & Parts

Automotive Scanner | XTOOL D8W Bluetooth Diagnostic Tool | ECU Coding & 42+ Resets

CMP-00021MAIN-00191
$2,199.99
VAG 409.1 KKL diagnostic interface cable with FTDI chip for OBD2 diagnostics on Volkswagen, Audi, Skoda, and Seat vehicles.

Maintenance & Parts

409.1 KKL Diagnostic Cable | FT232RL OBD2 Interface | For VW, Audi, Skoda & Seat

CMP-00022MAIN-00192
$49.99
NEXIQ-3 USB Link interface cable for connecting heavy-duty truck diagnostic software to vehicle ECUs via USB or Bluetooth.

Maintenance & Parts

NEXIQ-3 USB Link Adapter | Bluetooth Truck Diagnostic Tool | OBD2 Fault Diagnostics Detector

CMP-00023MAIN-00193
$499.99
Double-hole spark plug tester with 12V power, designed to check ignition spark and detect engine misfires up to 6000 RPM.

Maintenance & Parts

12V Spark Plug Tester | Double Hole Diagnostic Tool | 0-6000rpm Engine Ignition Detector

CMP-00024MAIN-00194
$59.99
MUCAR CDE900 OBD2 diagnostic scanner with 32GB storage, capable of reading engine, transmission, brake, and airbag codes for comprehensive vehicle analysis.

Maintenance & Parts

OBD2 Scanner | 32GB Diagnostic Tool | Engine, Brake & Airbag Code Reader

CMP-00025MAIN-00195
$189.99
Autel MaxiPRO MP900TS diagnostic scanner with OBD2, TPMS programming, MaxiSYS MS906TS update support, CANFD, and DOIP capabilities.

Maintenance & Parts

MaxiPRO MP900TS Scanner | TPMS Programming Tool | CANFD & DOIP Support

CMP-00026MAIN-00196
$3,249.99

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Selecting Diagnostic and Electrical Instruments for Fleet Monitoring

When choosing electrical test equipment and gauges, prioritize compatibility with system voltages and engine cycles. For instance, diagnostic scanning tools must support standard OBD2 protocols and offer bi-directional testing to troubleshoot complex ECUs. For secondary engine monitoring, match the instrument to the engine type-such as inductive tachometers compatible with both 2-stroke and 4-stroke configurations.

  • Power requirements: Ensure digital instruments match the vehicle's electrical system, typically 12V DC for standard powersports and light commercial vehicles.
  • Update longevity: Select diagnostic units with lifetime software updates to maintain compatibility with newer vehicle models.
  • Signal pickup: Inductive sensors simplify installation by reading spark plug ignition pulses without direct wiring.

Choosing Fasteners and Thread Repair Systems for High-Stress Assemblies

Stripped threads in engine blocks or chassis components require immediate, permanent remediation. Using stainless steel inserts ensures high corrosion resistance and thread strength that matches or exceeds the original specification. Always verify exact tap sizes and drill bit diameters before purchasing repair kits to ensure a precise interference fit.

  • Material selection: Use stainless steel fasteners and inserts for exterior trim, fenders, and bumpers to prevent galvanic corrosion.
  • Sizing precision: Match exact metric standards, such as M6 threads requiring specific 6.7 mm drill bits and M6.5 x 1.0 taps.
  • Component kits: Multi-piece kits with integrated installation tools reduce time spent searching for matching components during field repairs.

Matching Sealants and Lubricants to Environmental Exposure

Automotive environments subject chemicals to extreme vibration, moisture, and temperature fluctuations. For glass and windshield installations, select high-elongation moisture-cure silicone adhesives to absorb structural flexing. For mechanical assemblies like gears, valves, and electrical connections, choose non-conductive silicone grease to provide water barrier protection without causing short circuits.

  • Elongation capacity: Look for flexible silicone adhesives with elongation properties exceeding 300% to prevent seal failure.
  • Chemical compatibility: Ensure tools like fluid funnels use flexible silicone that tolerates engine oil, petrol, and coolant.

Buying guide

Choosing Maintenance & Parts

How do I ensure a thread repair kit matches my existing bolt specifications?
Match the thread size and pitch of your fastener exactly to the insert kit. For example, an M6 thread repair kit requires an M6.5 x 1.0 tap and a 6.7 mm drill bit to prepare the hole. Using incorrect drill sizes will compromise the load-bearing capacity of the repaired thread.
Why should I choose silicone-based funnels and tools over standard plastics in workshop environments?
High-flexibility silicone resists degradation from common automotive fluids like engine oil, washer fluid, petrol, and coolant. The material allows for foldable designs that save storage space in mobile service kits without cracking or losing shape under repeated use.
What elongation properties are required for structural automotive glass sealants?
Structural sealants for windshields and windows require an elongation at break of over 300% to handle vehicle body twist and thermal expansion. Moisture-cure silicone polymers provide this high elasticity while maintaining a waterproof seal against the elements.
When should non-conductive silicone grease be used in vehicle maintenance?
Non-conductive silicone grease is ideal for lubricating and sealing automobile gears, valves, chains, and electrical connectors. Its dielectric property prevents current leakage in damp environments while protecting rubber seals and plastic components from drying out.
What are the application limits for manual air wedge pumps during vehicle entry?
Manual air wedge pumps are designed for non-metal contact areas like door frames and window gaps to assist in lockouts or trim removal without scratching paint. Do not over-inflate beyond the gap required for tool insertion, as excessive pressure can bend metal door frames or shatter glass panels.