Compel Groupgroup

Maintenance & Parts

287 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.

287 products in Maintenance & Parts

Products

Digital LCD motorcycle speedometer for 12V systems.

Maintenance & Parts

Motorcycle Speedometer | Digital LCD Display | Universal Fit for 12V Systems

CMP-01396MAIN-00248
£61.99
Motorcycle LCD speedometer and tachometer, displaying 12000 RPM and 1-4 cylinder data.

Maintenance & Parts

Motorcycle LCD Speedometer Tachometer | 12000 RPM, 1-4 Cylinder Display | Digital Odometer Gauge

CMP-01397MAIN-00249
£37.99
Digital inductive tachometer and hour meter with a backlight for small engines.

Maintenance & Parts

Digital Inductive Tachometer | Resettable Hour Meter w/ Backlight | For Small Engines & Lawn Mowers

CMP-01398MAIN-00250
£52.99
LCD digital tachometer and hour meter for 2/4 stroke engines.

Maintenance & Parts

LCD Digital Tach Hour Meter | Inductive Display for 2/4 Stroke Engines | Motorcycle, Marine, Car

CMP-01399MAIN-00251
£41.99
Automotive circuit tester with a 2-metre cable for car battery diagnostics.

Maintenance & Parts

Automotive Circuit Tester | 12V/24V Power Scan | 2m Cable | Car Battery Diagnostics

CMP-01401MAIN-00252
£88.99
12V battery tester with a built-in printer for automotive diagnostic results.

Maintenance & Parts

12V Battery Tester with Printer | Automotive Diagnostic Tool | Fast Print Test Results

CMP-01402MAIN-00253
£241.99
Car battery tester for 6V/12V systems, detecting a 5-3000 CCA range.

Maintenance & Parts

Car Battery Tester | 6V/12V System Detect | 5-3000 CCA Range

CMP-01405MAIN-00254
£137.99
12V car battery tester for automotive charging system analysis.

Maintenance & Parts

12V Car Battery Tester | Automotive Alternator Checker | Battery Charging System Analyzer

CMP-01406MAIN-00255
£37.99
OBD2 scanner for full system diagnostics and service resets.

Maintenance & Parts

OBD2 Scanner | Full System Diagnostics & Service Resets | Lifetime Free Updates via THINKDIAG App

CMP-01407MAIN-00256
£216.99
Car relay tester with LED indicator light.

Maintenance & Parts

Car Relay Tester | 12V 24V Circuit Diagnostic Tool | LED Indicator Light

CMP-01410MAIN-00257
£59.99
OBD2 scanner with bidirectional control and 28 reset functions for all systems.

Maintenance & Parts

OBD2 Scanner | ECU Coding & Bidirectional Control | 28 Reset Functions for All Systems

CMP-01412MAIN-00258
£1,122.99
Car battery tester for 12V/24V cranking and charging system diagnostics.

Maintenance & Parts

Car Battery Tester | 12V/24V Cranking & Charging System Diagnostic | 0-2000 CCA Automotive Load Tester

CMP-01413MAIN-00259
£171.99
12V car battery tester with a 6 LED display for analysing alternators and batteries.

Maintenance & Parts

12V Car Battery Tester | Digital Alternator & Battery Analyzer | 6 LED Display

CMP-01414MAIN-00260
£37.99
Digital voltage tester for 4/5 pin automotive relays.

Maintenance & Parts

Relay Detector | 11-25V Digital Voltage Tester for 4/5 Pin Automotive Relays | ANENG RT01

CMP-01415MAIN-00261
£60.99
Car battery tester and fault code reader for 6V, 12V, and 24V batteries.

Maintenance & Parts

Car Battery Tester | 6V 12V 24V Battery Analyzer | Fault Code Reader

CMP-01418MAIN-00262
£146.99
12V car battery tester and automotive analyser with waveform voltage.

Maintenance & Parts

12V Car Battery Tester | Automotive Analyzer with Waveform Voltage | For Car and Motorcycle

CMP-01419MAIN-00263
£99.99
Automotive battery relay tester and voltage meter for car and lithium batteries.

Maintenance & Parts

12V/24V Battery Relay Tester | Automotive Diagnostic Tool | Voltage Meter for Car & Lithium Batteries

CMP-01420MAIN-00264
£41.99
Car battery tester for 6V, 12V, and 24V systems.

Maintenance & Parts

Car Battery Tester | 6V 12V 24V Systems | 100-2000 CCA, 2-200Ah Capacity

CMP-01422MAIN-00265
£70.99
Digital relay tester for 4/5 pin relay diagnosis.

Maintenance & Parts

Digital Relay Tester | 11-25V Vehicle Battery Detector | 4/5 Pin Relay Diagnosis

CMP-01423MAIN-00266
£58.99
Car and motorcycle battery tester, a 6V/12V battery analyser.

Maintenance & Parts

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

CMP-01426MAIN-00267
£177.99
12V car battery and alternator tester for automotive electrical systems.

Maintenance & Parts

12V Car Battery & Alternator Tester | Automotive Electrical System Analyzer | Battery Charging System Checker

CMP-01428MAIN-00268
£33.99
LED indicator light, a 12V battery and relay tester for automotive diagnostics.

Maintenance & Parts

LED Indicator Light | 12V Battery & Relay Tester | Automotive Diagnostic Tool

CMP-01429MAIN-00269
£56.99
Car battery tester with Bluetooth 5.0 for 6V, 12V, and 24V systems.

Maintenance & Parts

Car Battery Tester | 6V 12V 24V Bluetooth 5.0 | Waveform Monitor & Cranking Test

CMP-01430MAIN-00270
£111.99
Digital automotive battery tester with insulated clips, for 12V/24V batteries.

Maintenance & Parts

12V/24V Battery Tester | Digital Automotive Load Analyzer | 50-1999 CCA with Insulated Clips

CMP-01431MAIN-00271
£111.99
Automotive battery monitor for 12V and 24V lead acid batteries.

Maintenance & Parts

Automotive Battery Monitor | 12V 24V Lead Acid Battery Tester | Bluetooth 5.2 Capacity & Resistance

CMP-01434MAIN-00272
£58.99
Automotive relay tester with LED indicator for diagnostic checks on car batteries.

Maintenance & Parts

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

CMP-01436MAIN-00273
£58.99
Automotive relay tester with an LED indicator for car battery checks.

Maintenance & Parts

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

CMP-01437MAIN-00274
£60.99
Automotive relay tester for 12V electrical systems, with battery indicator.

Maintenance & Parts

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

CMP-01438MAIN-00275
£52.99

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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.

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