7495 Views Updated 27 September 2026

A4570910401 Compatible Manual Feed Pump for Mercedes-Benz

0101 099

Summary

This manual feed pump is designed for Mercedes-Benz O 403 SHD models equipped with OM 457 LA engines. It provides reliable fuel transfer within the heavy commercial vehicle fuel system, ensuring steady delivery to the injection unit. Equivalent to OE Mercedes-Benz A4570910401.

Product identifiers
EAN Code	8699031064437

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Compatible OEM Codes

MERCEDES BENZ
- 457 091 06 01
- 457 091 04 01
LASO
- 20090100

Description

What does a manual feed pump do?

This manual feed pump serves as a vital component within the fuel system, responsible for drawing diesel from the tank to provide a steady flow to the injection system. Built with high-strength components, it ensures reliable operation even under demanding service conditions for heavy commercial vehicles.

Vehicle and engine compatibility

This specific unit is designed for Mercedes-Benz O 403 and O 403 SHD models, specifically engineered to work with OM 457 LA engines. It is an essential replacement part for maintaining optimal fuel pressure and system integrity in these specific bus applications.

Installation and maintenance

To ensure correct installation, technicians should verify that the new pump matches the existing mounting points and connection types. Regular inspection of fuel lines and seals during installation helps prevent air ingress and maintains consistent fuel delivery to the high-pressure pump.

System reliability

Proper maintenance of the fuel delivery system prevents premature wear on more expensive injection components. Always consult your authorized distributor to ensure this part meets your specific engine requirements.

OE cross-reference

0101 099 (Manual Feed Pump) is the equivalent of the Mercedes-Benz OE number. This part directly replaces Mercedes-Benz OE number A4570910401.

Other OEMs

LASO

20090100

MERCEDES BENZ

A4570910601
A4570910401
4570910601
4570910401
457.091.0601
457.091.06.01
457.091.0401
457.091.04.01
457 091 0601
457 091 0401
457 091 06 01
457 091 04 01

Compatible Vehicles

Compatible Vehicles
Brand	Model	Model Type	Engine
LASO
MERCEDES BENZ	ATRON	1635 S	OM 457 LA
MERCEDES BENZ	AXOR	1835 LS	OM 457 LA
MERCEDES BENZ	AXOR	1840 LS	OM 457 LA
MERCEDES BENZ	AXOR	1843 LS	OM 457 LA
MERCEDES BENZ	AXOR	2535 LS	OM 457 LA
MERCEDES BENZ	AXOR	2540 LS	OM 457 LA
MERCEDES BENZ	AXOR	2543 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	1835 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	1836 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	1840 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	1843 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	2035 S	OM 457 LA
MERCEDES BENZ	AXOR 2	2036 S	OM 457 LA
MERCEDES BENZ	AXOR 2	2040 S	OM 457 LA
MERCEDES BENZ	AXOR 2	2041 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	2041 S	OM 457 LA
MERCEDES BENZ	AXOR 2	2044 S	OM 457 LA
MERCEDES BENZ	AXOR 2	2436 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	2440 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	2443 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	2535 L	OM 457 LA
MERCEDES BENZ	AXOR 2	2535 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	2535 S	OM 457 LA
MERCEDES BENZ	AXOR 2	2536 L	OM 457 LA
MERCEDES BENZ	AXOR 2	2536 LL	OM 457 LA
MERCEDES BENZ	AXOR 2	2536 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	2540 L	OM 457 LA
MERCEDES BENZ	AXOR 2	2540 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	2540 S	OM 457 LA
MERCEDES BENZ	AXOR 2	2541 S	OM 457 LA
MERCEDES BENZ	AXOR 2	2543 L	OM 457 LA
MERCEDES BENZ	AXOR 2	2543 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	2543 S	OM 457 LA
MERCEDES BENZ	AXOR 2	2544 LS	OM 457 LA
MERCEDES BENZ	AXOR 2	2544 S	OM 457 LA
MERCEDES BENZ	AXOR 2	2635 B	OM 457 LA
MERCEDES BENZ	AXOR 2	2636	OM 457 LA
MERCEDES BENZ	AXOR 2	2636 B	OM 457 LA
MERCEDES BENZ	AXOR 2	2636 K	OM 457 LA
MERCEDES BENZ	AXOR 2	2640	OM 457 LA
MERCEDES BENZ	AXOR 2	2640 B	OM 457 LA
MERCEDES BENZ	AXOR 2	2640 K	OM 457 LA
MERCEDES BENZ	AXOR 2	2640 S	OM 457 LA
MERCEDES BENZ	AXOR 2	2641 S	OM 457 LA
MERCEDES BENZ	AXOR 2	2643	OM 457 LA
MERCEDES BENZ	AXOR 2	2643 B	OM 457 LA
MERCEDES BENZ	AXOR 2	2643 K	OM 457 LA
MERCEDES BENZ	AXOR 2	2644 S	OM 457 LA
MERCEDES BENZ	AXOR 2	3235	OM 457 LA
MERCEDES BENZ	AXOR 2	3236 B	OM 457 LA
MERCEDES BENZ	AXOR 2	3236 K	OM 457 LA
MERCEDES BENZ	AXOR 2	3240	OM 457 LA
MERCEDES BENZ	AXOR 2	3240 B	OM 457 LA
MERCEDES BENZ	AXOR 2	3240 K	OM 457 LA
MERCEDES BENZ	AXOR 2	3243	OM 457 LA
MERCEDES BENZ	AXOR 2	3243 B	OM 457 LA
MERCEDES BENZ	AXOR 2	3243 K	OM 457 LA
MERCEDES BENZ	AXOR 2	3335	OM 457 LA
MERCEDES BENZ	AXOR 2	3335 B	OM 457 LA
MERCEDES BENZ	AXOR 2	3335 K	OM 457 LA
MERCEDES BENZ	AXOR 2	3335 S	OM 457 LA
MERCEDES BENZ	AXOR 2	3340	OM 457 LA
MERCEDES BENZ	AXOR 2	3340 B	OM 457 LA
MERCEDES BENZ	AXOR 2	3340 K	OM 457 LA
MERCEDES BENZ	AXOR 2	3340 S	OM 457 LA
MERCEDES BENZ	AXOR 2	3341	OM 457 LA
MERCEDES BENZ	AXOR 2	3341 K	OM 457 LA
MERCEDES BENZ	AXOR 2	3341 S	OM 457 LA
MERCEDES BENZ	AXOR 2	3343	OM 457 LA
MERCEDES BENZ	AXOR 2	3343 B	OM 457 LA
MERCEDES BENZ	AXOR 2	3343 K	OM 457 LA
MERCEDES BENZ	AXOR 2	3343 S	OM 457 LA
MERCEDES BENZ	AXOR 2	3344	OM 457 LA
MERCEDES BENZ	AXOR 2	3344 K	OM 457 LA
MERCEDES BENZ	AXOR 2	3344 S	OM 457 LA
MERCEDES BENZ	AXOR 2	4135 B	OM 457 LA
MERCEDES BENZ	AXOR 2	4135 K	OM 457 LA
MERCEDES BENZ	AXOR 2	4140	OM 457 LA
MERCEDES BENZ	AXOR 2	4140 B	OM 457 LA
MERCEDES BENZ	AXOR 2	4140 K	OM 457 LA
MERCEDES BENZ	AXOR 2	4143 B	OM 457 LA
MERCEDES BENZ	AXOR 2	4143 K	OM 457 LA
MERCEDES BENZ	AXOR 2	4144	OM 457 LA
MERCEDES BENZ	AXOR 2	4144 K	OM 457 LA
MERCEDES BENZ	AXOR 2	LL	OM 457 LA
MERCEDES BENZ	AXOR 2	LLS	OM 457 LA
MERCEDES BENZ	AXOR 2	LS	OM 457 LA
MERCEDES BENZ	CAPACITY	CAPACITY	OM 457 HLA
MERCEDES BENZ	CITARO (O 530)	Citaro G	OM 457 HLA
MERCEDES BENZ	CITARO (O 530)	Citaro G	OM 457 LA
MERCEDES BENZ	CITARO (O 530)	Citaro GN3	OM 457 HLA
MERCEDES BENZ	CITARO (O 530)	Citaro GN3	OM 457 LA
MERCEDES BENZ	CITARO (O 530)	Citaro LÜ	OM 457 HLA
MERCEDES BENZ	CITARO (O 530)	Citaro LÜ	OM 457 LA
MERCEDES BENZ	CITARO (O 530)	Citaro MUE	OM 457 HLA
MERCEDES BENZ	CITARO (O 530)	Citaro MUE	OM 457 LA
MERCEDES BENZ	CITARO (O 530)	Citaro N	OM 457 hLA
MERCEDES BENZ	CITARO (O 530)	Citaro N	OM 457 LA
MERCEDES BENZ	CONECTO (O 345)	CONECTO 12M
MERCEDES BENZ	CONECTO (O 345)	CONECTO 12M	OM 457 LA
MERCEDES BENZ	CONECTO (O 345)	CONECTO 18M	OM 447 HLA
MERCEDES BENZ	CONECTO (O 345)	CONECTO 18M	OM 457 LA
MERCEDES BENZ	CONECTO (O 345)	CONECTO C	OM 457 hLA
MERCEDES BENZ	CONECTO (O 345)	H	OM 457 hLA
MERCEDES BENZ	CONECTO (O 345)	M	OM 457 hLA
MERCEDES BENZ	CONECTO (O 345)	UE	OM 457 hLA
MERCEDES BENZ	INTEGRO (O 550)	Integro	OM 457 HLA
MERCEDES BENZ	INTEGRO (O 550)	Integro L	OM 457 HLA
MERCEDES BENZ	INTEGRO (O 550)	Integro M	OM 457 HLA
MERCEDES BENZ	INTOURO	Intouro	OM 457 HLA
MERCEDES BENZ	INTOURO	Intouro E	OM 457 HLA
MERCEDES BENZ	INTOURO	Intouro M	OM 457 HLA
MERCEDES BENZ	INTOURO	Intouro ME	OM 457 HLA
MERCEDES BENZ	O 403	O 403 SHD	OM 457 LA
MERCEDES BENZ	TOURISMO (O 350)	SHD	OM 457 LA
MERCEDES BENZ	TOURISMO (O 350)	Tourismo 15 RHD	OM 457 HLA
MERCEDES BENZ	TOURISMO (O 350)	Tourismo 15 RHD	OM 457 LA
MERCEDES BENZ	TOURISMO (O 350)	Tourismo 15 SHD	OM 457 LA
MERCEDES BENZ	TOURISMO (O 350)	Tourismo 16 RHD	OM 457 HLA
MERCEDES BENZ	TOURISMO (O 350)	Tourismo 16 RHD	OM 457 LA
MERCEDES BENZ	TOURISMO (O 350)	Tourismo 17 RHD	OM 457 LA
MERCEDES BENZ	TOURISMO (O 350)	Tourismo RHD	OM 457 LA
MERCEDES BENZ	TOURO (O 500)	GLE	OM 457 LA
MERCEDES BENZ	TOURO (O 500)	O 500 GL	OM 457 LA
MERCEDES BENZ	TOURO (O 500)	O 500 RSD	OM 457 LA
MERCEDES BENZ	TOURO (O 500)	Touro	OM 457 LA
MERCEDES BENZ	TRAVEGO (O 580)	O 580-15 RH	OM 457 hLA
MERCEDES BENZ	TRAVEGO (O 580)	O 580-15 RH/RHD	OM 457 hLA
MERCEDES BENZ	TRAVEGO (O 580)	O 580-15 RH/RHD	OM 457 LA
MERCEDES BENZ	TRAVEGO (O 580)	O 580-15 RHD	OM 457 LA
MERCEDES BENZ	TRAVEGO (O 580)	O 580-15 SHD	OM 457 LA
MERCEDES BENZ	TRAVEGO (O 580)	O 580-16 RHD	OM 457 LA
MERCEDES BENZ	TRAVEGO (O 580)	O 580-17 RHD	OM 457 LA
MERCEDES BENZ	ZETROS	2643 AS	OM 457 LA
MERCEDES BENZ	ZETROS	3343 AS	OM 457 LA
SETRA	Series 400	ComfortClass S 415 GT	OM 457 HLA
SETRA	Series 400	ComfortClass S 415 GT	OM 457 LA
SETRA	Series 400	ComfortClass S 415 GT-HD	OM 457 hLA
SETRA	Series 400	ComfortClass S 415 GT-HD	OM 457 LA
SETRA	Series 400	ComfortClass S 416 GT	OM 457 HLA
SETRA	Series 400	ComfortClass S 416 GT-HD	OM 457 LA
SETRA	Series 400	ComfortClass S 417 GT-HD	OM 457 HLA
SETRA	Series 400	ComfortClass S 417 GT-HD	OM 457 LA
SETRA	Series 400	MultiClass S 412 UL	OM 457 HLA
SETRA	Series 400	MultiClass S 415 H	OM 457 HLA
SETRA	Series 400	MultiClass S 415 NF	OM 457 HLA
SETRA	Series 400	MultiClass S 415 UL	OM 457 HLA
SETRA	Series 400	MultiClass S 415 UL	OM 457 LA
SETRA	Series 400	MultiClass S 416 H	OM 457 HLA
SETRA	Series 400	MultiClass S 416 NF	OM 457 HLA
SETRA	Series 400	MultiClass S 416 UL	OM 457 HLA
SETRA	Series 400	MultiClass S 417 UL	OM 457 HLA
SETRA	Series 400	MultiClass S 419 UL	OM 457 HLA
SETRA	Series 400	S 415 H	OM 457 HLA
SETRA	Series 400	TopClass S 415 HD	OM 457 LA
SETRA	Series 400	TopClass S 415 HDH	OM 457 LA
SETRA	Series 400	TopClass S 416 HDH	OM 457 LA
SETRA	Series 400	TopClass S 417 HDH	OM 457 LA

FAQ

What is the function of this manual feed pump?

It acts as a fuel transfer unit that draws diesel from the tank and delivers it to the injection system at low pressure to ensure steady flow.

Which vehicle is this part compatible with?

This part is specifically designed for Mercedes-Benz O 403 and O 403 SHD buses featuring the OM 457 LA engine.

How can I know if my manual feed pump needs replacement?

Signs of failure include difficulty starting, engine hesitation, or visible leaks within the low-pressure side of the fuel system.

Does this part require specific installation tools?

Standard workshop tools are used, but it is critical to ensure all connections are airtight to prevent air bubbles from entering the fuel system.

What are the OE reference numbers of this part?

0101 099 directly replaces Mercedes-Benz OE number A4570910401.