Mastering Geotab
★ Geotab Harnesses · Make-Specific and Custom Harnesses
The HRN-CE10K2 is a Geotab custom harness kit for North American Volvo and Mack heavy-duty trucks from 2019 on, supplied with a fuse kit and used together with the HRN-CM24Y1-A. It taps the J1939 backbone inside the fuse box instead of the diagnostic port.
The HRN-CE10K2 is a Geotab kit that connects a GO device to Volvo and Mack heavy trucks from model year 2019 onward, built for the North American market, working through a fuse box connection rather than the cab diagnostic port. The kit holds the harness and a fuse kit, the harness measures 30 cm (12 in), and Geotab states that it must be paired with the HRN-CM24Y1-A.
It is the current part for this job. Geotab lists it as replacing the HRN-CE10A2 and the SPR-VOVKIT, and several of its install guides still use the older HRN-CE10A2 name for the harness inside the kit. If an older work order or a parts shelf shows those numbers, this is what you need now.
Geotab's listing covers North American Volvo and Mack heavy-duty trucks, 2019 or newer, and backs that up with separate install documents for 2019+ Mack, 2019+ Volvo and the 2019+ Mack MR series cab-over. Geotab also files its 2004 to 2018 Volvo guide under this kit, so older Volvo conventionals are covered by the same part. Geotab's harness notes add that a universal HRN-GS16K22-A fitted with the HRN-CG13S1-A adapter can also work on these trucks.
The device side always passes through the HRN-CM24Y1-A, the base harness that holds the GO unit's connector. Geotab's online guide for this kit lists the GO9 as the hardware. Fleets moving to GO10 should talk to us first so we confirm the correct pairing before parts are ordered.
Volvo and Mack trucks run 12 volt systems with engines that Geotab treats as a special case on the 16-pin port. Tapping the J1939 backbone inside the fuse box avoids that issue entirely, and it leaves the diagnostic port clear for the shop's scan tool. The GO device ends up zip tied to the fuse box frame, out of the driver's legroom and hidden from casual tampering.
For a mixed fleet with some trucks on the older SPR-VOVKIT, it also means one current part number to stock for every Volvo and Mack from 2019 forward.
Geotab's 2019+ Mack and Volvo guides share the same core moves, with the Volvo dash needing extra trim removal to reach a spare power plug:
Hold the full connected run to 2 m (6.5 ft) at most; joining two T-harnesses is never allowed.
| Spec | Detail |
|---|---|
| Part number | HRN-CE10K2 |
| Vehicles | North American Volvo and Mack heavy-duty trucks, 2019 or newer |
| In the box | Custom harness plus a fuse kit |
| Harness length | 30 cm (12 in) |
| Requires | HRN-CM24Y1-A |
| Replaces | HRN-CE10A2 and SPR-VOVKIT |
| Maximum connected harness length | 2 m (6.5 ft) |
| Country of origin | China |
The terminating resistor is the part people lose or forget. If it does not go back into the harness mating end, the J1939 line is left without its end-of-line termination, which is no way to send a truck out of the yard. On a 2019+ Volvo, use DL1J1939 only. Check the spare power slot with a meter before trusting it, and confirm its fuse is present. Leave the second end of the power T-cable alone unless another accessory genuinely needs the daisy chain. On the MR cab-over, the work moves to the center console bus bar, so read that guide instead of the conventional one.
Geotab names it as the successor to both the HRN-CE10A2 harness and the older SPR-VOVKIT, so a parts list that still shows either of those should now call for the HRN-CE10K2.
No. Geotab requires the HRN-CM24Y1-A alongside it, because that base harness is what carries the GO device connection, and the two meet at matching white 6-pin Molex plugs marked OBDII.
Not quite. Geotab's MR series guide places the work at the center console, where the red and black leads are cut, fused and ring-terminated onto the power bus bar, instead of using the fuse box BATT OPT plug.
Heavy trucks are where our 35 years in twelve-volt work pay off. API Signal arrives at your yard with the HRN-CE10K2, the HRN-CM24Y1-A and the GO devices, and leaves each Volvo or Mack reporting before we pack up. Phone 803-513-1009 or open Get a Quote to describe your trucks.
Sources: Geotab Harness Identification and Application, Geotab 2019+ Mack install guide, Geotab 2019+ Volvo install guide, Geotab 2019+ Mack MR cab-over guide, Geotab HRN-CE10K2 online guide, Geotab specific install notes. GEOTAB is a registered trademark of Geotab Inc. API Signal is an independent installer and is not Geotab.
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