NHTSA ID Number: 11021636
Manufacturer Communication Number: No. 29-18
TSB/Document Date: 2025-08-06
Summary
Installation and conversion instructions for the trailer hitch on the Cayenne. MY19-23
Installation and Conversion Instructions
Cayenne (9YA)
29/18
ENU
6690
6
Trailer Hitch (I-no. 1D6)
Information
Further information/technical values, instructions for using the trailer hitch and “Driving with a trailer” can be
found in the:
•
Vehicle Owner’s Manual Cayenne, topics: “Trailer Hitch”, “More Safety and More Driving Pleasure” and
“Weights”
•
Vehicle registration documents
Revision:
This bulletin replaces Group 6, 29/18, dated August 11, 2023.
Model Year:
As of 2019 up to 2023
Information:
Retrofitting
Note:
The new Cayenne can be retrofitted with a trailer hitch (). Note the following special features:
•
•
•
•
•
•
•
•
•
Permissible tongue weight (vehicle) for E-Hybrid
vehicles with 8-cylinder engine: max. 120 kg/ 264 lbs
Permissible tongue weight (vehicle) of max. 140 kg/ 308 lbs
Totally versatile wading depth
Convenient loading and safe parking is assured by removing the ball hitch/bar (mechanical trailer hitch
– 1D6)
Plug socket preparation for USA version
Payload following installation, restricted by higher vehicle kerb weight!
Permissible total weight and axle load must not be exceeded!
Vehicles with painted wheel arch extensions (6GK or SportDesign package) require NEW wheel arch
extensions (rear), which must be ordered separately!
Vehicles with SportDesign package Carbon (2D3 or PD1/PD2/PD3) require a NEW rear panel, which
must be ordered separately.
The trailer hitches for the respective market are also available straight from the factory for new vehicles by
requesting optional equipment "1D6" = mechanical trailer hitch.
Parts Info:
ONLY for vehicles up to production date 16. 08. 2020:
9Y0.044.840.01
⇒ Trailer hitch, mechanical – USA (1D6)
ONLY for vehicles as of production date 17. 08. 2020 TO 29. 11. 2021:
9Y0.044.840.04
⇒ Trailer hitch, mechanical – USA (1D6)
Tequipment
Jul 17, 2025
Page 1 of 14
6
Cayenne (9YA)
6690
ENU
Installation and Conversion Instructions
29/18
ONLY for vehicles as of production date 29. 11. 2021:
9Y0.044.840.08
⇒ Trailer hitch, mechanical – USA (1D6)
ONLY for vehicles with Comfort Access (4F2/4F6 – Powerlift tailgate with virtual pedal): Also order the
following:
WHT.005.450
8x
⇒ Tie-wrap
Information
ONLY for additional parts to be ordered separately:
If necessary, check the additional scopes of the vehicle to be converted with the respective vehicle identification number (VIN) in the Porsche
Electronic Parts Catalogue = PET before ordering.
Check model year, vehicle equipment (I-no.), body and country versions in the standard catalogue!
ONLY for vehicles with SportDesign package Carbon (2D3 - Basic or PD1 / PD2 / PD3 - Coupè): Also order
the following, depending on country/market:
9Y0.807.834.H.03G
1x
⇒ Rear panel - open, shiny carbon, black – USA
ONLY for vehicles with painted wheel arch extensions (6GK or SportDesign package) also order the following:
9Y3.854.731.C.G2X
9Y3.854.732.C.G2X
9Y0.854.731.D.G2X
9Y0.854.732.D.G2X
Jul 17, 2025
Page 2 of 14
1x
1x
1x
1x
⇒ Coupé wheel cover, rear left; ready-primed – AUS (6GK)
⇒ Coupé wheel cover, rear right; ready-primed – AUS (6GK)
⇒ Wheel cover, rear left; ready-primed - AUS (6GK)
⇒ Wheel cover, rear right; ready-primed - AUS (6GK)
Tequipment
Installation and Conversion Instructions
Cayenne (9YA)
29/18
ENU
6690
6
Parts List:
Figure 1
Parts included with trailer hitch – mechanical – USA/Canada (1D6 ⇒ Figure 1):
Þ Figure 1 -1PAF.910.398.02
8x
Hexagon-head bolt, M12 x 1.5 x 90 ⇒
Þ Figure 1 -29Y0.803.881.A
1x
Trailer hitch incl. wire harness – USA/Canada (1D6) ⇒
Þ Figure 1 -3Not applicable for NAR⇒
1
Þ Figure 1 -4955.722.030.00
1x
Plug Trailer hitch ⇒
Þ Figure 1 -51x
Trailer hitch control unit connector ⇒
9Y0.907.297
Þ Figure 1 -61x
Trailer hitch control unit ⇒
9A7.907.383.01
PAB.907.383.A
1x
Trailer hitch control unit (not shown)
PAB.907.383.C
1x
Trailer hitch control unit (not shown)
Þ Figure 1 -7———
1x
Wiring harness for power supply (terminal 30) ⇒
Þ Figure 1 -8955.044.000.28
1x
Ball hitch –removable– USA/Canada ⇒
Þ Figure 1 -9———
1x
"Electric Brake" sticker – identification ⇒
———
10 x
Tie-wrap, 150 mm (not shown)
1
Already installed on the trailer hitch.
Tequipment
Jul 17, 2025
Page 3 of 14
6
Cayenne (9YA)
6690
ENU
Installation and Conversion Instructions
29/18
Tools:
Nr.88 - Torque angle torque wrench
P90999 - P90999 - PIWIS Tester 4
Disassembly tool
Saw or vibrating knife
Steel drill bit, Ø up to 8.0 mm
Tap, M12 x 1.5
Drill
Round/flat file
Side cutters
Flat scraper
Plastic wedge
Flash light
Knife
Installing:
1
Preparatory work
1.1
Connect battery charger, see ( ⇒ Workshop Manual '2X00IN Trickle charging 12-volt
lithium-ion battery').
1.2
Raise the vehicle ( ⇒ Workshop Manual '4X00IN Lifting the vehicle')
1.3
Remove rear bumper ( ⇒ Workshop Manual '635019 Removing and installing rear bumper')
1.4
Expose connector B (6-pin)/connector C
(10-pin) on trailer hitch preparation near
the fuse box in the luggage compartment
(⇒ Figure 4).
1
2
3
– Connector B (6-pin)/connector C
(10-pin)
– Ground pin MB25
– Fuse box in luggage compartment,
left
Carefully remove foam.
Jul 17, 2025
Page 4 of 14
1.5
Figure 4
ONLY for Trailer hitch – mechanical - (1D6):
Expose connection point (connector, 2-pin) for brake booster preparation in the luggage
compartment area at the left.
1.6
Check that the bolt threads and contact surfaces for securing the trailer hitch are not dirty.
Clean them and re-cut the threads using an M12 x 1.5 tap if necessary.
Tequipment
Installation and Conversion Instructions
Cayenne (9YA)
29/18
ENU
6690
6
NOTICE
Incorrect line routing
•
Risk of damage to lines and hoses
•
Malfunction and fault memory entry on control unit
Þ
⇒
Avoid small bending radii when routing lines.
Þ
⇒
File down edges and burrs in the routing area or mask them with adhesive tape.
Þ
⇒
Maintain a sufficient distance from components exposed to high temperatures while driving.
1.7
ONLY for vehicles with Comfort Access
(4F2/4F6 – Powerlift tailgate with virtual
pedal):
Converting "Virtual pedal" antenna line into rear
apron
1
2
3
4
5
1.7.1
1.8
– "Virtual pedal" antenna line
– Control unit for "Virtual pedal"
antenna line
– Positions of tie-wraps on adhesive
pads
– Tie-wrap with adhesive pad
– New line routing for "Virtual pedal"
antenna line
Carefully remove "Virtual pedal"
antenna line with holder and
tie-wraps (7 x) from the inside of the
Þ Figure 5 -1-).
rear apron (⇒
Figure 5
1.7.2
Carefully cut open tie-wraps on adhesive pads and remove tie-wraps (7 x) from
antenna line.
1.7.3
Clean bonding area in the new antenna line routing area to remove any dust and
Þ Figure 5 -3-).
grease (⇒
1.7.4
Stick on new adhesive pads (7 x) with tie-wraps at the markings.
1.7.5
Secure "Virtual pedal" antenna line in new tie-wraps (7 x) and cut off excess length of
tie-wraps.
ONLY for vehicles WITH SportDesign package Carbon (2D3 or PD1/ PD2/ PD3):
Replace rear panel – closed (shiny carbon, black) with new rear panel – open (shiny carbon,
black) ( ⇒ Workshop Manual '63561940 Removing and installing rear panel (moulding)')
Information
Mask the sawing area to prevent damage.
Tequipment
Jul 17, 2025
Page 5 of 14
6
Cayenne (9YA)
6690
ENU
Installation and Conversion Instructions
29/18
1.9
ONLY for vehicles WITHOUT SportDesign package Carbon (2D3 or PD1/PD2/PD3):
Make a cut-out for the (removable/pivoting) ball hitch in the rear apron.
1.9.1
Remove rear panel (moulding) in black matt (2JB) or stainless steel (2JX) on the
bottom of the rear apron ( ⇒ Workshop Manual '63561940 Removing and installing
rear panel (moulding)').
1.9.2
Mark the cut-out for the ball hitch
(removable – USA) at the impression
Þ
on the inside of the rear apron (⇒
Figure 6 -top-).
1
2
3
2
Figure 6
1.9.3
Þ Figure 6 -bottom-).
Carefully make the cut-out along the marking (⇒
1.9.4
De-burr cut edges with a knife or file.
1.9.5
Install rear panel (moulding) in black matt (2JB) or stainless steel (2JX) on the bottom
of the rear apron ( ⇒ Workshop Manual '63561940 Removing and installing rear
panel (moulding)').
Installing the trailer hitch
2.1
Secure trailer hitch to the vehicle
2.1.1
Install the trailer hitch using 8 new
bolts (M12 x 1.5 x 90) at the left and
right and tighten hand-tight.
1
2
2.2
Jul 17, 2025
Page 6 of 14
– Red = Marking for cut-out
for removable ball hitch
– Yellow = Marking for
cut-out for electrically
extendable ball hitch
– Cut-out for electrically
extendable ball hitch –
RoW
– Trailer hitch (electric)
– Screw M12 x 1.5 x 90
2.1.2
Align bolt guides for the trailer hitch
(8 x) symmetrically with respect to
Þ
the 8 bolt heads M12 x 1.5 x 90 (⇒
Figure 7 -Magnifier-).
2.1.3
Tighten trailer hitch fully.
Tightening torque 110 Nm (81.1
ftlb.)
Figure 7
Route electric wire harness for trailer hitch in the passenger compartment (see also ⇒
Workshop Manual '972419 Removing and installing wire harness for trailer hitch')
Tequipment
Installation and Conversion Instructions
2.2.1
Cayenne (9YA)
29/18
ENU
6690
6
Remove dummy plug (Ø 40 mm)
from side panel on the vehicle at the
left and guide wire harness for trailer
hitch into the luggage compartment.
1
2
3
– Wire harness for trailer
hitch
– Rubber sleeve (wire
harness)
– Tie-wrap
2.2.2
Insert rubber sleeve (wire harness)
into the bore (Ø 40 mm) on the body.
2.2.3
Install tie-wraps for wire harness (2
x) on threaded bolts on the outside of
the vehicle (⇒ Figure 8).
Figure 8
2.3
Check pin assignment in connector B on the
vehicle side (6-pin; trailer hitch preparation
⇒ Figure 9).
1
2
3
4
– Connector B (6-pin; trailer hitch
preparation)
– Connector B, chamber 1
– Connector B, chamber 6
– Fuse holder H (strip B – white)
Are chambers 1 (swivel motor) and 6 (charge
line) - both on terminal 30 - used?
•
•
Yes: ⇒ Continue with Step 2.4
No: Carry out the following work.
Tequipment
Figure 9
Jul 17, 2025
Page 7 of 14
6
Cayenne (9YA)
6690
ENU
Installation and Conversion Instructions
29/18
2.3.1
Remove fuse holder H (strip B –
white) from the fuse box in the
luggage compartment ( ⇒ Workshop
Manual '978409 Loosening and
securing fuse box in the luggage
Þ Figure 10 -top-).
compartment'⇒
1
2
3
4
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TSB/Document ID: No. 29-18
Replacement Service Bulletin Number:
MFR Communication Date: 2025-07-17
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: UNKNOWN OR OTHER
MFR Component System:
MFR Component Subsystem:
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