18SP684Rev3 – EPA07 and EPA10 DD Platform
EGR Delta Pressure Sensor Update
NOTE: This kit is to be used ONLY if the venturi pipe is plugged.
KIT DESCRIPTION
Two service kits have been released containing all components needed to replace the EGR Delta
Pressure Sensor used on all EPA07 and EPA10 DD13 and DD15/16 engines.
The new parts became effective November 2, 2011, with DD15 engine S/N: 472903S0103639 and
DD13 engine S/N: 471903S0103500.

KIT CONTENTS
The service kits in Table 1 below contain all necessary parts to replace the EGR Delta Pressure
Sensor on EPA07 and EPA10 DD engines.
NOTE: The venturi pipe for the DD13 and the DD15/16 engines is NOT interchangeable.
Part No.

Description

DD13 Kit
(P/N: 23539640)

A4701530228

EGR Delta Pressure
Sensor
A4711404508 DD13 Venturi Pipe
A4721402908 DD15/16 Venturi Pipe
N910105006016 Bolts, Delta Pressure Sensor
Mounting
A4721420880 Gasket
23539637
Delta Pressure Connector Pigtail with
three crimp connectors
A4729970353 Hose
A4729970245 O-ring
18SP684Rev3. Installation Instructions
Table 1

DD15/16 Kit
(P/N: 23539641)

1

1

1
NA

NA
1

2

2

1

1

1

1

1
1
1

1
1
1

EPA07/EPA10 DD Platform, EGR Delta Pressure Sensor Installation Kits

18SP684Rev3 Page 1 of 5

REPAIR PROCEDURE

PERSONAL INJURY
To avoid injury, never remove any engine component while the engine is running.

Use the following procedure to replace the EGR Delta Pressure Sensor.
REMOVAL PROCEDURE
1. Shut off engine and apply the parking brake, chock the wheels, open hood, disconnect
vehicle battery power, and perform any other applicable safety steps.

PERSONAL INJURY
Avoid injury from hot surfaces, wear protective gloves, or allow engine to cool before
removing any component.
NOTE: Prior to performing the removal steps, ensure that the mixer pipe is not hot.
NOTE: The hose is a one-time-use item.
2. Loosen two hose clamps from hose on mixer pipe and venturi pipe. Slide the clamps over
the mixer pipe as they will be reused.
3. Remove three bolts securing mixer pipe to cold boost pipe. Remove the remaining bolt
above the intake throttle valve holding the mixer pipe. Save bolts for reuse.
4. Remove mixer pipe and seal from cold boost pipe. Save mixer pipe for reuse.
5. Remove and discard hose and seal.
6. Release harness connector on EGR Delta Pressure Sensor by pushing the orange tab up to
unlock the connector; depress the thumb tab and remove the harness connector.
7. Remove the two bolts (3) from the venturi pipe (4) to the EGR crossover pipe (1) and
remove the venturi pipe. Save bolts for reuse. Discard venturi pipe and gasket (2).
See Figure 1.

18SP684Rev3 Page 2 of 5

Figure 1

Venturi Pipe

INSTALLATION PROCEDURE
1. Install a new gasket (P/N: A4721420880) onto the EGR crossover pipe.
2. Install new venturi pipe (DD13 P/N: A4711404508 or DD15/16 P/N: A4721402908) onto the
EGR crossover pipe with two bolts. Torque to 30 N·m (22 lb·ft).

NOTICE
Before the hose is installed on the mixer pipe, ensure there are no sharp
edges that may cut the hose liner.
NOTE: If hose clamps have been removed from mixer pipe, they must be reinstalled prior
to hose installation.
3. Install a new hose (P/N: A4729970353) on the mixer pipe.
4. Install a new seal (P/N: A4729970245) on mixer pipe and install onto the intake mixer
housing with three bolts.
5. Insert the EGR cooler water manifold side of mixer pipe hose into the venturi and secure
with two clamps. Torque clamps to 3.0 to 3.5 N·m (26 to 26.5 lb·in.).
6. Install the remaining bolt above the intake throttle valve. Torque the four bolts to
30 N·m (22 lb·ft).

18SP684Rev3 Page 3 of 5

7. Install new EGR Delta Pressure Sensor (P/N: A4701530228) to the venturi pipe with two
new bolts (P/N: N910105006016). Torque to 10 N·m (7 lb·ft).
8. Strip the wires on the delta pressure sensor connector pigtail (P/N: 23539637).
9. Install the wire crimps on the pigtail ensuring they are heat shrank properly.
10. Remove the old delta pressure connector by cutting the harness six inches from
the connector.
11. Trim the conduit on the engine harness to expose the wires.
12. Strip the wires on the engine harness.
NOTICE:
Do NOT apply the grease directly to the sensor connector terminals. Static electricity
could cause electrical damage to the sensor.
13. Apply dielectric grease to the harness connector only using P/N: 23538278.
14. Connect the new pigtail to the delta pressure sensor.
15. Crimp the wires from the engine harness to the delta pressure sensor by matching the
colors respectively. Ensure the crimps are heat shrank properly.
16. Wrap the exposed wires with electrical tape.
NOTICE:
Ensure the harness is not contacting the venturi pipe other than the mounting point or
damage could occur.
17. Clip the harness for the delta pressure sensor (1) to the venturi pipe (2).

18SP684Rev3 Page 4 of 5

ELECTRICAL SHOCK
To avoid injury from electrical shock, use care when connecting
battery cables. The magnetic switch studs are at battery voltage.
18. Connect the batteries.
19. Using DiagnosticLink™, calibrate the Delta Pressure Sensor.

ENGINE EXHAUST
To avoid injury from inhaling engine exhaust, always
operate the engine in a well-ventilated area. Engine
exhaust is toxic.

PERSONAL INJURY
To avoid injury before starting and running the engine,
ensure the vehicle is parked on a level surface, parking
brake is set, and the wheels are blocked.

20. Close the hood.
21. Start the engine and confirm repairs.

Specifications are subject to change without notice. Detroit Diesel Corporation is registered to ISO 9001:2008.
Copyright © Detroit Diesel Corporation. All rights reserved. Detroit™ is a brand of Detroit Diesel Corporation,
a Daimler company.

18SP684Rev3 1404 As technical advances continue, specifications will change. Printed in U.S.A.

18SP684Rev3 Page 5 of 5